18=3(u-4)-6u

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Solution for 18=3(u-4)-6u equation:


Simplifying
18 = 3(u + -4) + -6u

Reorder the terms:
18 = 3(-4 + u) + -6u
18 = (-4 * 3 + u * 3) + -6u
18 = (-12 + 3u) + -6u

Combine like terms: 3u + -6u = -3u
18 = -12 + -3u

Solving
18 = -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.
18 + 3u = -12 + -3u + 3u

Combine like terms: -3u + 3u = 0
18 + 3u = -12 + 0
18 + 3u = -12

Add '-18' to each side of the equation.
18 + -18 + 3u = -12 + -18

Combine like terms: 18 + -18 = 0
0 + 3u = -12 + -18
3u = -12 + -18

Combine like terms: -12 + -18 = -30
3u = -30

Divide each side by '3'.
u = -10

Simplifying
u = -10

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