Solving by the substitution method y=3x+7 y-5x+8

Mathematics

1 answer:

Sveta_85 [38]2 years ago

6 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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