sepia

Lv 7

# Could someone please help me with a few problems on the Elimination Method?

1)

5x - y = 12

3x + y = 4

2)

2x - y = -6

2x - 2y = -4

### 4 Answers

Relevance

- Steve ALv 71 year agoFavourite answer
5x - y = 12

3x + y = 4

Add the two equations.

8x = 16

x = 2

3(2) +y = 4

y = -2

Check it.

5(2) - (-2) = 12

Checks.

2x -y = -6

2x -2y = -4

Subtract the two equations.

y = -2

2x -(-2) = -6

x = -4

- Log in to reply to the answers

- Mike GLv 71 year ago
1) Add equations

8x = 16

x = 2, y = -2

2) Subtract equations

y = -2, x = -4

- Log in to reply to the answers

- Anonymous1 year ago
So your getting your answers from Yahoo. You are not really studying. Don't tell me you are smart.

- Log in to reply to the answers

Still have questions? Get answers by asking now.