SOLUTION: Solve the system by addition -5x+2y=10 x-3y=11 Solve by substitution 2x+2y=0 y=4x+0

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Question 125509: Solve the system by addition

-5x+2y=10 x-3y=11
Solve by substitution
2x+2y=0 y=4x+0
Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!
-5x+2y=10 now multiply the other equation by 5 & add.
5x-15y=55
------------------------
-13x=65
x=65/-13
x=-5 answer.
---------------------------
y=4x+0 replace y in the other equation & solve for x.
2x+2(4x-0)=0
2x+8x-0=0
10x=0
x=0 answer.
y=4*0+0
y=0 answer.

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