-9u-17=-2[u-2]

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Solution for -9u-17=-2[u-2] equation:


Simplifying
-9u + -17 = -2[u + -2]

Reorder the terms:
-17 + -9u = -2[u + -2]

Reorder the terms:
-17 + -9u = -2[-2 + u]
-17 + -9u = [-2 * -2 + u * -2]
-17 + -9u = [4 + -2u]

Solving
-17 + -9u = 4 + -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.
-17 + -9u + 2u = 4 + -2u + 2u

Combine like terms: -9u + 2u = -7u
-17 + -7u = 4 + -2u + 2u

Combine like terms: -2u + 2u = 0
-17 + -7u = 4 + 0
-17 + -7u = 4

Add '17' to each side of the equation.
-17 + 17 + -7u = 4 + 17

Combine like terms: -17 + 17 = 0
0 + -7u = 4 + 17
-7u = 4 + 17

Combine like terms: 4 + 17 = 21
-7u = 21

Divide each side by '-7'.
u = -3

Simplifying
u = -3

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