Fourth one since x is 2 and the y is 1
ANSWER
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STEP BY STEP:
-Distribute
-Combine like terms
-Simplify
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Hello,
Answer C
y=2x-3.5==>2x-7=3.5 (1)
x-2y=-14 (2)
(1)-2*(2)==>3y=28+3.5 ==>y=31.5/3==>y=10.5
x=-14+2*10.5==>x=7
sol={(7,10.5)}
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