9.0-7y=-63

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Solution for 9.0-7y=-63 equation: 


Simplifying
9.0 + -7y = -63

Solving
9.0 + -7y = -63

Solving for variable 'y'.

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

Add '-9.0' to each side of the equation.
9.0 + -9.0 + -7y = -63 + -9.0

Combine like terms: 9.0 + -9.0 = 0.0
0.0 + -7y = -63 + -9.0
-7y = -63 + -9.0

Combine like terms: -63 + -9.0 = -72
-7y = -72

Divide each side by '-7'.
y = 10.28571429

Simplifying
y = 10.28571429

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