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Tom
Mathematics
12 October, 18:20
How do you solve
x = y + 7
x=9 - y
+3
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1
)
Stacy Zuniga
12 October, 18:41
0
Since x = y+7
So you just blog in x in the second equation
Y+7 = 9-y
By adding y to each side
2y+7=9
Then subtract 7 from each side
2y=2
Divide each side by 2
Y=1
Then blog in Y in the first equation
X=y+7
X = 1+7=8
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