9u+4-2(-6u-1)=3(u-1)

Solution for 9u+4-2(-6u-1)=3(u-1) equation:

Simplifying
9u + 4 + -2(-6u + -1) = 3(u + -1)

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

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

Combine like terms: 4 + 2 = 6
6 + 9u + 12u = 3(u + -1)

Combine like terms: 9u + 12u = 21u
6 + 21u = 3(u + -1)

Reorder the terms:
6 + 21u = 3(-1 + u)
6 + 21u = (-1 * 3 + u * 3)
6 + 21u = (-3 + 3u)

Solving
6 + 21u = -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.
6 + 21u + -3u = -3 + 3u + -3u

Combine like terms: 21u + -3u = 18u
6 + 18u = -3 + 3u + -3u

Combine like terms: 3u + -3u = 0
6 + 18u = -3 + 0
6 + 18u = -3

Add '-6' to each side of the equation.
6 + -6 + 18u = -3 + -6

Combine like terms: 6 + -6 = 0
0 + 18u = -3 + -6
18u = -3 + -6

Combine like terms: -3 + -6 = -9
18u = -9

Divide each side by '18'.
u = -0.5

Simplifying
u = -0.5