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July 29, 2014

July 29, 2014

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

5x + 5y= -7

7x - 2y= 17

- Algebra? needs h elp -
**SraJMcGin**, Saturday, June 5, 2010 at 1:25pmCollege as the School Subject will NOT get you the correct teacher. Please name it carefully.

Sra

- college -
**Jen**, Saturday, June 5, 2010 at 2:09pmElimination 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.

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