SOLUTION: 7x+y=-2 7x+37=8
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Question 316345
:
7x+y=-2
7x+37=8
Answer by
checkley77(12844)
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7x+y=-2
7x+3(y)=8 subtract.
------------
-2y=-10
y=-10/-2
y=5 ans.
7x+5=-2
7y=-2-5
x=-7
x=-1 ans.
Proof:
7*-1+3*5=8
-7+15=8
8=8