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September 16, 2014

September 16, 2014

Posted by **Laura** on Friday, December 21, 2012 at 11:59pm.

2x – 2y = –8

x + 2y = –1

And this one:

Solve the system using elimination.

3x – y = 28

3x + y = 14

Pleease help me :(

- algebra URGENT! -
**Reiny**, Saturday, December 22, 2012 at 12:49am1st:

add them

3x = -9

x = -3

back into #2

-3 + 2y = -1

2y = 2

y = 1

2nd:

add them

6x = 42

x = 7

in the 2nd:

21 + y = 14

y = -7

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