SOLUTION: solve this system of equations by elimination 4x+y=-13 6x+-3y=-15

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Question 233815: solve this system of equations by elimination
4x+y=-13
6x+-3y=-15
Answer by checkley77(7072) About Me  (Show Source):
You can put this solution on YOUR website!
4x+y=-13 MULTIPLY THIS EQUATION BY 3 & ADD THE 2 EQUATIONS.
6x-3y=-15 [I'LL ASSUME THE MIDDLE TERM IS A (-3)]
12X+3Y=-39
---------------
18X=-54
X=-54/18
X=-3 ANS.
4*-3+Y=-13
-12+Y=-13
Y=-13+12
Y=-1 ANS.
PROOF:
6*-3*-3*-1=-15
-18+3=15
15=15