SOLUTION: x-5y=1 -x+2y=-4
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Question 258527
:
x-5y=1
-x+2y=-4
Answer by
checkley77(12844)
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x-5y=1
-x+2y=-4 add.
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-3y=-3
y=-3/-3
y=1 ans.
x-5*1=1
x-5=1
x=1+5
x=6 ans.
Proof:
-6+2*1=-4
-6+2=-4
-4=-4