Math help :(

posted by .

I don't get any of these practice problems.

5. 2(x – 3) = 2x

one solution
no solutions
infinitely many solutions

6. 3(y – 3) = 2y – 9 + y

one solution
no solutions
infinitely many solutions


7. 10x – 2 – 6x = 3x – 2 + x

one solution
no solutions
infinitely many solutions


8. 4(x + 3) + 2x = x – 8

one solution
no solutions
infinitely many solutions

  • Math help :( -

    http://openstudy.com/updates/52a1e689e4b088e695c0cc86

  • Math help :( -

    2(x-3) = 2x
    2x - 6 = 2x
    Move 2x to the left side and change sign. Then put zero after the equal sign.

    2x - 2x - 6 = 0

    2x's cancels out.
    0 = 6

    No Solution
    ________________________________

    3(y - 3)= 2y - 9 + y
    3y - 9 = 3y - 9
    Move 3y to the left and -9 to the right and change their signs.
    3y - 3y = - 9 + 9
    0 = 0

    All real numbers > many solutions
    ____________________________________

    10x - 2 - 6x = 3x - 2 + x
    4x - 2 = 4x - 2
    Same as problem 6
    ___________________________________

    4(x + 3)+ 2x = x - 8
    4x + 12 + 2x = x - 8
    6x + 12 = x - 8
    Move x to the left and 12 to the right, then change their signs.

    6x - x = -20
    5x = -20
    x = -4 > one solution

  • Math help :( -

    Decide whether each equation has one solution, no solutions, or infinitely many solutions.
    1. 2(x - 3) = 2x
    A. one solution B. no solutions C. infinitely many solutions
    2. 3(y - 3) = 2y - 9 + y
    A. one solution B. no solutions C. infinitely many solutions
    3. 10x - 2 - 6x = 3x - 2 + x
    A. one solution B. no solutions C. infinitely many solutions 4. 4(x + 3) + 2x = x - 8 A. one solution B. no solutions C. infinitely many solutions

    1. 2(x - 3) = 2x -- distribute through the parenthesis 2x - 6 = 2x -- add 6 to both sides 2x = 2x + 6 -- subtract 2x from both sides
    2x - 2x = 6 0 = 6 (incorrect)
    If you answer comes out not equal, then there is no solution

    2. 3(y - 3) = 2y - 9 + y -- distribute and combine 3y - 9 = 3y - 9 -- subtract 3y 3y - 3y - 9 = - 9 -- add 9 3y - 3y = -9 + 9 0 = 0 (correct)

  • Math help :( -

    If you answer comes out equal, then there is infinite solutions
    3. 10x - 2 - 6x = 3x - 2 + x -- combine like terms 4x - 2 = 4x - 2 same thing here...it is gonna come out to 0 = 0 making it have infinite solutions
    4. 4(x + 3) + 2x = x - 8 4x + 12 + 2x = x - 8 6x + 12 = x - 8 6x - x = -8 - 12 5x = - 20
    x = -4
    ONE SOLUTION

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    Decide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y one solution no solutions infinitely many …
  2. My Math

    ecide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions …
  3. 7th grade math Ms. Sue please

    1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x (1 point) one solution no …
  4. VERY URGENT MATH~!!!!!!!!

    1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x (1 point) one solution no …
  5. math

    Help pllsss ASAP!!! have certain answers!! i try but i do not understand! help asap! give answers and walkthrough problems for me! 1. 2(x - 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y - 3) = 2y - 9 …
  6. Math

    Decide whether each equation has one solution, no solutions, or infinitely many solutions. 3(y-3)=2y-9+y A. One solution B. No Solutions C. Infinitely many solutions I did 3*y 3*3=9 2y=9+4 3-*=-6 x-27 Is the answer A?
  7. math

    Decide whether the each equation has one solution, no solutions,or infinitely many solutions. 1. 2(x-3)= 2X A.One solution B.No solutions C.Infinitely many solutions 2. 3(y-3)= 2y-9+y A.One solution B.No solutions C.Infinitely many …
  8. math

    Decide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x a.one solution b.no solutions c.infinitely many solutions 2. 3(y – 3) = 2y – 9 + y a.one solution b.no solutions c.infinitely …
  9. Math

    1. 2(x-3)=2x A. One solution B. No solutions C. Infinitely many solutions 2. 3(y-3)=2y-9+y A. One solution B. No solutions C. Infinitely many solutions 3. 10x-2-6x=3x-2+x A. One solution B. No solutions C. Infinitely many solutions …
  10. math

    Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 3x − y = −3 6x − 2y = 8 a) one and only one solution b) infinitely many solutions c) no solution can you …

More Similar Questions