-63=-9u+9

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Solution for -63=-9u+9 equation:


Simplifying
-63 = -9u + 9

Reorder the terms:
-63 = 9 + -9u

Solving
-63 = 9 + -9u

Solving for variable 'u'.

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

Add '9u' to each side of the equation.
-63 + 9u = 9 + -9u + 9u

Combine like terms: -9u + 9u = 0
-63 + 9u = 9 + 0
-63 + 9u = 9

Add '63' to each side of the equation.
-63 + 63 + 9u = 9 + 63

Combine like terms: -63 + 63 = 0
0 + 9u = 9 + 63
9u = 9 + 63

Combine like terms: 9 + 63 = 72
9u = 72

Divide each side by '9'.
u = 8

Simplifying
u = 8

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