9u+3-3(-2u-4)=3(u-1)

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Solution for 9u+3-3(-2u-4)=3(u-1) equation:


Simplifying
9u + 3 + -3(-2u + -4) = 3(u + -1)

Reorder the terms:
9u + 3 + -3(-4 + -2u) = 3(u + -1)
9u + 3 + (-4 * -3 + -2u * -3) = 3(u + -1)
9u + 3 + (12 + 6u) = 3(u + -1)

Reorder the terms:
3 + 12 + 9u + 6u = 3(u + -1)

Combine like terms: 3 + 12 = 15
15 + 9u + 6u = 3(u + -1)

Combine like terms: 9u + 6u = 15u
15 + 15u = 3(u + -1)

Reorder the terms:
15 + 15u = 3(-1 + u)
15 + 15u = (-1 * 3 + u * 3)
15 + 15u = (-3 + 3u)

Solving
15 + 15u = -3 + 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.
15 + 15u + -3u = -3 + 3u + -3u

Combine like terms: 15u + -3u = 12u
15 + 12u = -3 + 3u + -3u

Combine like terms: 3u + -3u = 0
15 + 12u = -3 + 0
15 + 12u = -3

Add '-15' to each side of the equation.
15 + -15 + 12u = -3 + -15

Combine like terms: 15 + -15 = 0
0 + 12u = -3 + -15
12u = -3 + -15

Combine like terms: -3 + -15 = -18
12u = -18

Divide each side by '12'.
u = -1.5

Simplifying
u = -1.5

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