(u-10)*9=90

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Solution for (u-10)*9=90 equation:


Simplifying
(u + -10) * 9 = 90

Reorder the terms:
(-10 + u) * 9 = 90

Reorder the terms for easier multiplication:
9(-10 + u) = 90
(-10 * 9 + u * 9) = 90
(-90 + 9u) = 90

Solving
-90 + 9u = 90

Solving for variable 'u'.

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

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

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

Combine like terms: 90 + 90 = 180
9u = 180

Divide each side by '9'.
u = 20

Simplifying
u = 20

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