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Holloway
Mathematics
6 October, 13:42
9x + 7y = 10
7x + 7y = 14
+1
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Kyler Dorsey
6 October, 13:46
0
Y=4/7
x=4/9
this is the answer
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Christine Morrison
6 October, 13:56
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Multiply the second row by - 1 to cancel out the 7x.
9x+7y=10
-7x-7y=-14
2x=-4
x=-2
9 (-2) + 7y=10
-18+7y=10
7y=28
y=4
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