Sunday

December 21, 2014

December 21, 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

**Answer this Question**

**Related Questions**

College Algebra - Please help! x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above ...

Math - Please help! x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above system of ...

algebra 2 - Nonlinear systems Solve the system by elimination. y=x^2+2 -4x-y=10 ...

algebra 2 - Nonlinear homework... Solve the system by elimination. 1)y=x^2+2 -4x...

Algebra/Elimination method - Solve using the elimination method. If the system ...

algebra - i need help with these problems (either a solution or how to plug them...

Algebra Multiple Choice - Hello, This is the last of questions I have for my ...

Algebra - X-2y=-1 2x+y=4 solve each system using elimination. Tell whether the ...

Algebra - 2x+y=-5 3x-y=-10 solve system using elimination

algebra - solve each system using elimination x+4y=12 and 2x-3y=6