9u-9=2(u-1)

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Solution for 9u-9=2(u-1) equation:


Simplifying
9u + -9 = 2(u + -1)

Reorder the terms:
-9 + 9u = 2(u + -1)

Reorder the terms:
-9 + 9u = 2(-1 + u)
-9 + 9u = (-1 * 2 + u * 2)
-9 + 9u = (-2 + 2u)

Solving
-9 + 9u = -2 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
-9 + 9u + -2u = -2 + 2u + -2u

Combine like terms: 9u + -2u = 7u
-9 + 7u = -2 + 2u + -2u

Combine like terms: 2u + -2u = 0
-9 + 7u = -2 + 0
-9 + 7u = -2

Add '9' to each side of the equation.
-9 + 9 + 7u = -2 + 9

Combine like terms: -9 + 9 = 0
0 + 7u = -2 + 9
7u = -2 + 9

Combine like terms: -2 + 9 = 7
7u = 7

Divide each side by '7'.
u = 1

Simplifying
u = 1

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