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# Solve: 2(x-y)=5+2y and 2(x+y)=5-2x ?

Please help fast!

### 4 Answers

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- icemanLv 79 years agoFavorite Answer
2(x-y)=5+2y

2(x+y)=5-2x

2x - 2y - 2y = 5

2x + 2y + 2x = 5

2x - 4y = 5

8x + 4y = 10

10x = 15

x = 15/10 = 3/2

y = -1/2

- 9 years ago
Simplify to 2x - 4y = 5 and 4x + 2y = 5

2 4 = 5

4 2 = 5

1 0 = 0.8333

0 1 = 0.8333

Source(s): linear algebra, systems of equations - NoneLv 79 years ago
2x - 2y = 5 + 2y => 2x - 4y = 5......(1)

2x + 2y= 5 - 2x => 4x + 2y= 5......(2)

Add twice (2) to (1)

10x = 15

x = 3/2 and therefore y = - 1/2

- Anonymous9 years ago
2(x-y)=5+2y

2x-2y=5+2y

2x=5+2y+2y

2x=5+4y

2(x+y)=5-2x

2x+2y=5-2x

2x+2x=5-2y

4x=5-2y

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