cjoy356
cjoy356
19-01-2020
Mathematics
contestada
solving by the substitution method
y=3x+7
y-5x+8
Respuesta :
jassy667
jassy667
19-01-2020
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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