SOLUTION: solve simultaneously 2y-3x=-21 2x+3y=-1

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: solve simultaneously 2y-3x=-21 2x+3y=-1       Log On


   

Question 1073749: solve simultaneously
2y-3x=-21
2x+3y=-1
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
-3x%2B2y=-21
2x%2B3y=-1
Multiply eq. 1 by 2 and eq. 2 by 3 and add the equations together to eliminate x.
-6x%2B4y%2B6x%2B9y=-42-3
13y=-45
Solve for y, then use either equation to solve for x.