-7y=21-x

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Solution for -7y=21-x equation: 


Simplifying
-7y = 21 + -1x

Solving
-7y = 21 + -1x

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Divide each side by '-7'.
y = -3 + 0.1428571429x

Simplifying
y = -3 + 0.1428571429x

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