math correction

posted by .

solve:
x -8 = 4
+ 8 +8
x = 12

my answer is x = 12

solve:
80 = 10x
-- ---
10 10

8 = x

my answer is x =8

solve:
3x= -12
-- ---
3 3

x = -4

my answer is x = -4

Solve:
12 -3x = 9
-12 -12
-3x = -3
--- ---
-3 -3

x = 1

my answer is x = 1

ok on all of them.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math,correction

    okay for the first one i/ve done it twice and both times i got 10, not -10. check your work to make sure you did it correctly. for the second one i got 24 so you are correct Directions solve for x. (x)/(x-2)-(x+1)/(x)=(8)/(x^2-2x) …
  2. math,correction,plz

    Solve each of the following quadratic equations by completing the square. Problem#22 sect. 10.2 x^2-6x-3=0 My answer I keep getting two different answers : I get these two everytime i do it differently. I get : x= 3 +- radical(12) …
  3. math,correction,plz

    can someone correct this forme solve 7/5 = 35/x My answer: x = 25 solve x/2 minus x/3 = 3 My answer: x = 18 Both are correct
  4. math,correction

    Solve for x. Problem #22 25x^2 = 13 My answer: x = + - radical (13)/(5) Problem #32 2 (x - 5 )^2 = 3 My answer: x = 5 +- radical (3)/(2) Problem #42 Solve for x x^2+4x+4=7 (hint factor the left-hand side) My answer: x = -2 +- radical …
  5. math,correction

    Problem 22 Solve each quadratic equation by completeling the square. x^2 -6x-3 = 0 MY answer: x = 3 +- 2 radical (3) Problem 28 2x^2+10x+11=0 My answer: x = -2.5 +- 0.5 radical (3) Problem 38 Find two consecutive positive integers …
  6. Algebra

    Can someone please help solve this? Solve by using addition or substitution or addition. 10x+2y=7 y=-5x+3 the answer my got was x=11/10 y=-2 My teacher said that was wrong. Never mind this post I found out how to solve it. Try substitution.
  7. Algebra

    This will be a multiple post thing so please bear with me. If my answers are wrong then please explain I'll post my work as needed thanks. 1)Identify the y-intercept and the axis of symemetry for the graph of f(x)=-3x^2+6x+12. answer=12:x=1 …
  8. Maath

    Solve the equation for the indicated variable. 4x-3a-(10x+7a)=0 solve for x This is all I know how to do & don't know if it's even right. 4x-3a-(10x+7a)=0 solve for x 4x-3a-10x-7a=0 -6x-10a=0
  9. math

    Solve each equation. What am I doing wrong because the answer is suppose to be 11/2 and I don't get the answer. Here's what I'm doing... Problem: 2x+1/4-3x-4/5=1/2 I get: 10x+5-12x-16=10 Which gives me -2x=21 My answer is -21/2 the …
  10. MATH

    5x-4y= -3 2x + 7y= 5 How to solve this linear system shown above by using elimination strategy ?

More Similar Questions