Thursday
March 23, 2017

Post a New Question

Posted by on Saturday, June 5, 2010 at 12:56pm.

How o Isolve by using the elimination method.

5x + 5y= -7
7x - 2y= 17

  • Algebra? needs h elp - , Saturday, June 5, 2010 at 1:25pm

    College as the School Subject will NOT get you the correct teacher. Please name it carefully.

    Sra

  • college - , Saturday, June 5, 2010 at 2:09pm

    Elimination involves multiplying one or more equations to either eliminate the x's or y's.
    Multiplying the top equation by 2 and the bottom equation by 5 will eliminate the y's.
    10x+10y=-14
    35x-10y=85
    Now add the equations together.
    45x=71
    Divide both sides by 45 to solve by x.
    x=?
    Now plug that number into any of the equations to figure out what y is. Post your answer if you'd like it checked.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question