SOLUTION: 7x+9y=42 -9x+y=34
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Question 251635
:
7x+9y=42
-9x+y=34
Answer by
richwmiller(17219)
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-9x+y=34
y=9x+34
7x+9*(9x+34)=42
x=-3
y=9(-3)+34
y=7