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harkovskaia [24]

3 years ago

13

How do you solvex = y +7x=9- y

1 answer:

navik [9.2K]3 years ago

3 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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