SOLUTION: solve 3x+2y=8 2x-5y=18

Algebra ->  Equations -> SOLUTION: solve 3x+2y=8 2x-5y=18      Log On


   

Question 387813: solve 3x+2y=8 2x-5y=18
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.3x%2B2y=8
2.2x-5y=18
Multiply eq. 1 by (5) and eq. 2 by (2) and add them,
15x%2B10y%2B4x-10y=40%2B36
19x=76
highlight%28x=4%29
Then use either equation to solve for y.
8-5y=18
-5y=10
highlight%28y=-2%29