SOLUTION: Solve each of the following by subtraction. 5x – 2y = -5 y – 5x = 3 8x – 4y = 16 y = 2x – 4 4x – 12y = 5 -x + 3y = -1

Algebra ->  Expressions-with-variables -> SOLUTION: Solve each of the following by subtraction. 5x – 2y = -5 y – 5x = 3 8x – 4y = 16 y = 2x – 4 4x – 12y = 5 -x + 3y = -1       Log On


   

Question 85367: Solve each of the following by subtraction.
5x – 2y = -5 y – 5x = 3
8x – 4y = 16 y = 2x – 4
4x – 12y = 5 -x + 3y = -1
10x + 2y = 7 y = -5x + 3
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
5X-2Y=-5
-5X+Y=3
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-Y=-2
Y=2 ANSWER.
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8X-4Y=16 NOW MULTIPLY THE SECOND EQUATION BY 4 & ADD.
-8X+4Y=-16
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0X+0Y=0 NO SOLUTION AS THESE ARE THE SAME EQUATION WITH 2 UNKNOWNS.
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I'LL LEAVE THE REST FOR YOU TO MASTER.