SOLUTION: x+9y=79 -7x+9y=23
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-> SOLUTION: x+9y=79 -7x+9y=23
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Question 261759
:
x+9y=79
-7x+9y=23
Answer by
richwmiller(17219)
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subtract second equation from first
8x=56
x=7
7+9y=79
9y=72
y=8
(7,8)