Algebra II

Solve each equation. Check for extraneous solutions.

Solve:|x+5|=3x-7

My answers were: x=6 and x=.5
I don't think they are right though, but I should get 2 answers right???....Help!

  1. 👍 0
  2. 👎 0
  3. 👁 674
  1. 6 is correct.

    If you check your answers, you will find that .5 (1/2) is not a solution.

    You must always check your answers in the original problem.

    1. 👍 0
    2. 👎 0
  2. So i wouldn't have 2 answers?

    1. 👍 0
    2. 👎 0
  3. One answer, x = 6.

    .5 or 1/2 is an extraneous solution (not a valid solution).

    If you are asked specifically if there are any extraneous solutions, then you would list it as such.

    I've never had a problem ask for extraneous solutions, since it's not a solution to the problem.

    1. 👍 0
    2. 👎 0
  4. ok so would |2y-3|=3y-2 be y=-1??

    1. 👍 0
    2. 👎 0
  5. No, y = -1 is an extraneous solution.

    y = 1, is the answer.

    1. 👍 0
    2. 👎 0
  6. |4w+3|-2=5

    Would be: w= 5\4

    1. 👍 0
    2. 👎 0
  7. How would I solve:
    2|z+1|-3=z-2
    ???

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    (1)Is the Equation true, false, or open? 4y + 8 = 6y + 3 A. True; the expressionas are the same for all values of variables B. False; the expressions are never the same ****** C. Open; there is a varible (12)Which equation is an

  2. Math check please

    1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve

  3. Mathematics

    2. Write an equation to represent the statement: "The product of a number and five plus two is equal to 100." (1 point) A. 5 - x - 2 = 100 B. 5(x - 2)=100 C. 5 x + 2 = 100 D. 5 - 2 x = 100 3. Solve using mental math. (1 point) 5 x

  4. Math

    Solve the equation. Identify any extraneous solutions. x = sqrt root 3x + 40

  1. Math

    Evaluate the expression for the given value of the variable. Show your work. [-4b-8]+[-1-b^2]+2b^3;b=-2 Solve the equation. Check for extraneous solutions. 9[9-8x]=2x+3. Show your work. I really need help with both of these

  2. How do I do this.?(Math.)

    Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve one of the equations for x or y. Let's solve the first one for y: y - 2x = -5 y = 2x - 5 Now let's substitute 2x - 5 for y in the second

  3. pre algebra

    1. Solve the equation. –9v – 5 = –95 (1 point) 17 11 10 –10 2. Solve the equation. x over four – 5 = –8 (1 point) –27 –12 –7 12 3. Solve the equation. p over five + 6 = 10 (1 point) 44 30 20 –20 4. Solve the

  4. help...solving a polynomial....algebra

    solve this please....help me....12x(squared)+7x-10 Do you wish to factor this trinomial? If so, the factors are: (4x + 5)(3x - 2) You can use the FOIL method to check. If this is supposed to be an equation: 12x^2 + 7x - 10 = 0

  1. Algebra

    Solve the equation. Identify any extraneous solutions. √a=-2 A.4 is a solution of the original equation. B.4 is a solution of the original equation. -4 is an extraneous solution***** C.-4 is a solution of the original equation.

  2. Substitution Method-Plz help

    Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 solve for x in the second equation. x= y+2 Put that in for x in the first equation: x+y=-4 (y+2) + y = -4 solve for y. Then, x= y+2 i don't get

  3. algebra 2

    Solve the equation. Check for extraneous solutions. 9|9-8x|=2x+3 can anyone please show me how to do this problem?

  4. math

    Solve the equation by completing the square. If the solutions are real, give exact and approximate answers. Otherwise, list the exact solutions. 7x^2-4x+1=2x^2-7x+3 Please help!!!!! :(

You can view more similar questions or ask a new question.