SOLUTION: -x-6y=-16 -5x+y=13
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Question 258525
:
-x-6y=-16
-5x+y=13
Answer by
checkley77(12844)
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-x-6y=-16 MULTIPLY BY -5 & ADD.
-5x+y=13
5X+30Y=80
------------------
31Y=93
Y=93/31
Y=93/31
Y=3 ANS.
-X-6*3=-16
-X-18=-16
-X=-16+18
-X=2
X=-2 ANS.
PROOF:
-5*-2+3=13
10+3=13
13=13