3(u+9)=-2(6u-6)+9u

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Solution for 3(u+9)=-2(6u-6)+9u equation:


Simplifying
3(u + 9) = -2(6u + -6) + 9u

Reorder the terms:
3(9 + u) = -2(6u + -6) + 9u
(9 * 3 + u * 3) = -2(6u + -6) + 9u
(27 + 3u) = -2(6u + -6) + 9u

Reorder the terms:
27 + 3u = -2(-6 + 6u) + 9u
27 + 3u = (-6 * -2 + 6u * -2) + 9u
27 + 3u = (12 + -12u) + 9u

Combine like terms: -12u + 9u = -3u
27 + 3u = 12 + -3u

Solving
27 + 3u = 12 + -3u

Solving for variable 'u'.

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

Add '3u' to each side of the equation.
27 + 3u + 3u = 12 + -3u + 3u

Combine like terms: 3u + 3u = 6u
27 + 6u = 12 + -3u + 3u

Combine like terms: -3u + 3u = 0
27 + 6u = 12 + 0
27 + 6u = 12

Add '-27' to each side of the equation.
27 + -27 + 6u = 12 + -27

Combine like terms: 27 + -27 = 0
0 + 6u = 12 + -27
6u = 12 + -27

Combine like terms: 12 + -27 = -15
6u = -15

Divide each side by '6'.
u = -2.5

Simplifying
u = -2.5

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