SOLUTION: Solve by the elimination method. 4x+6y=14 3x-6y= -21

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Question 554355: Solve by the elimination method.
4x+6y=14
3x-6y= -21
Answer by Kasko(2) About Me  (Show Source):
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Solve by the elimination method.
4x+6y=14
3x-6y= -21
7x=-7
X=-1
3x-6y=-21
3(-1)-6y=-21
-3-6y=-21
+3. +3
-6y=-18
/-6. /-6
y=3
(-1,3)
CHECK
4(-1)+6(3)=14
14=14
3(-1)-6(3)=-21
-21=-21