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

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


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

Reorder the terms:
2u + 4 + -2(-4 + -9u) = 2(u + -1)
2u + 4 + (-4 * -2 + -9u * -2) = 2(u + -1)
2u + 4 + (8 + 18u) = 2(u + -1)

Reorder the terms:
4 + 8 + 2u + 18u = 2(u + -1)

Combine like terms: 4 + 8 = 12
12 + 2u + 18u = 2(u + -1)

Combine like terms: 2u + 18u = 20u
12 + 20u = 2(u + -1)

Reorder the terms:
12 + 20u = 2(-1 + u)
12 + 20u = (-1 * 2 + u * 2)
12 + 20u = (-2 + 2u)

Solving
12 + 20u = -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.
12 + 20u + -2u = -2 + 2u + -2u

Combine like terms: 20u + -2u = 18u
12 + 18u = -2 + 2u + -2u

Combine like terms: 2u + -2u = 0
12 + 18u = -2 + 0
12 + 18u = -2

Add '-12' to each side of the equation.
12 + -12 + 18u = -2 + -12

Combine like terms: 12 + -12 = 0
0 + 18u = -2 + -12
18u = -2 + -12

Combine like terms: -2 + -12 = -14
18u = -14

Divide each side by '18'.
u = -0.7777777778

Simplifying
u = -0.7777777778

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