SOLUTION: solve using the addition method A) 2x-6y=-2 5x+y=27 B) 4x-2y=-6 3x+y=-7 C) -2y-x=2 y= -1/2x-1

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: solve using the addition method A) 2x-6y=-2 5x+y=27 B) 4x-2y=-6 3x+y=-7 C) -2y-x=2 y= -1/2x-1      Log On


   

Question 583859: solve using the addition method
A) 2x-6y=-2
5x+y=27
B) 4x-2y=-6
3x+y=-7
C) -2y-x=2
y= -1/2x-1
Answer by solver91311(24713) About Me  (Show Source):
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Multiply the second equation by 6:



Add the equations:





Solve for then substitute back into one of the orginal equations to solve for

John

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