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Mathematics
Zander Small
Today, 00:40
Solving by the substitution method
y=3x+7
y-5x+8
+2
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1
)
Tara Lynch
Today, 03:52
0
3x+7-5x=8
-2x+7=8
-2x=1
X=-1/2
y=3 (-1/2) + 7
y=-1.5+7
y=5.5
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