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

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


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

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

Reorder the terms:
-18 = -12 + -6u + 3u

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

Divide each side by '3'.
u = 2

Simplifying
u = 2

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