30=3(u+4)-6u

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Solution for 30=3(u+4)-6u equation:


Simplifying
30 = 3(u + 4) + -6u

Reorder the terms:
30 = 3(4 + u) + -6u
30 = (4 * 3 + u * 3) + -6u
30 = (12 + 3u) + -6u

Combine like terms: 3u + -6u = -3u
30 = 12 + -3u

Solving
30 = 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.
30 + 3u = 12 + -3u + 3u

Combine like terms: -3u + 3u = 0
30 + 3u = 12 + 0
30 + 3u = 12

Add '-30' to each side of the equation.
30 + -30 + 3u = 12 + -30

Combine like terms: 30 + -30 = 0
0 + 3u = 12 + -30
3u = 12 + -30

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

Divide each side by '3'.
u = -6

Simplifying
u = -6

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