GCSE question

0

545

2

x+2y=7

3x+2y=9

What is x and what is y i did everything but every time i was failing , could someone help me please and explain it to me.

Guest Sep 5, 2014

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Best Answer

+14

+5

x+2y = 7 /*-1
3x+2y=9

-x-2y = -7

3x+2y = 9

2x = 2

x = 1

now u go solve y :)

1 + 2y = 7
2y = 6
y=3

pretty easy ;)

helen1709 Sep 5, 2014

2⁺⁰ Answers

+14

+5

Best Answer

x+2y = 7 /*-1
3x+2y=9

-x-2y = -7

3x+2y = 9

2x = 2

x = 1

now u go solve y :)

1 + 2y = 7
2y = 6
y=3

pretty easy ;)

helen1709 Sep 5, 2014

+118608

0

Thanks Helen

Melody Sep 6, 2014

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