Math
Solve for both systems - 2x + y = - 3 and - x - y = - 12
![](https://d22o6al7s0pvzr.cloudfront.net/images/bookrags/qa/avatars/.defaults/unknown.png)
Asked by
AnneS2
Last updated by
anonymous
- 2x + y = - 3
- 2x+2x + y = - 3 +2x
y = - 3 +2x
- x - y = - 12
- x - ( - 3 +2x) = - 12
- x +3 -2x = - 12
+3 -3x = - 12
+3-3 -3x = - 12-3
-3x=-15
-3x/-3=-15/-3
x=5
y = - 3 +2x
y = - 3 +2(5)
y = - 3 +10=7