SOLUTION: how do i solve the following problem by using substitution method? 2x-y=16 -x+2y=-8

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: how do i solve the following problem by using substitution method? 2x-y=16 -x+2y=-8      Log On


   



Question 377988: how do i solve the following problem by using substitution method?
2x-y=16
-x+2y=-8

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
From the top eq'n: y = 2x - 16. Substitute into the bottom equation, to get
-x + 2(2x - 16) = -8;
-x + 4x - 32 = -8;
3x = 24;
x = 8. Then y = 2*8- 16 = 0.