9(u+1)=90

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Solution for 9(u+1)=90 equation: 


Simplifying
9(u + 1) = 90

Reorder the terms:
9(1 + u) = 90
(1 * 9 + u * 9) = 90
(9 + 9u) = 90

Solving
9 + 9u = 90

Solving for variable 'u'.

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

Add '-9' to each side of the equation.
9 + -9 + 9u = 90 + -9

Combine like terms: 9 + -9 = 0
0 + 9u = 90 + -9
9u = 90 + -9

Combine like terms: 90 + -9 = 81
9u = 81

Divide each side by '9'.
u = 9

Simplifying
u = 9

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