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

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


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

Reorder the terms:
9u + 4 + -2(-6 + -4u) = 2(u + -1)
9u + 4 + (-6 * -2 + -4u * -2) = 2(u + -1)
9u + 4 + (12 + 8u) = 2(u + -1)

Reorder the terms:
4 + 12 + 9u + 8u = 2(u + -1)

Combine like terms: 4 + 12 = 16
16 + 9u + 8u = 2(u + -1)

Combine like terms: 9u + 8u = 17u
16 + 17u = 2(u + -1)

Reorder the terms:
16 + 17u = 2(-1 + u)
16 + 17u = (-1 * 2 + u * 2)
16 + 17u = (-2 + 2u)

Solving
16 + 17u = -2 + 2u

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-2u' to each side of the equation.
16 + 17u + -2u = -2 + 2u + -2u

Combine like terms: 17u + -2u = 15u
16 + 15u = -2 + 2u + -2u

Combine like terms: 2u + -2u = 0
16 + 15u = -2 + 0
16 + 15u = -2

Add '-16' to each side of the equation.
16 + -16 + 15u = -2 + -16

Combine like terms: 16 + -16 = 0
0 + 15u = -2 + -16
15u = -2 + -16

Combine like terms: -2 + -16 = -18
15u = -18

Divide each side by '15'.
u = -1.2

Simplifying
u = -1.2

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