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

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


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

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

Combine like terms: 18u + -1u = 17u
-18 + 17u = 2(u + -2) + -4

Reorder the terms:
-18 + 17u = 2(-2 + u) + -4
-18 + 17u = (-2 * 2 + u * 2) + -4
-18 + 17u = (-4 + 2u) + -4

Reorder the terms:
-18 + 17u = -4 + -4 + 2u

Combine like terms: -4 + -4 = -8
-18 + 17u = -8 + 2u

Solving
-18 + 17u = -8 + 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.
-18 + 17u + -2u = -8 + 2u + -2u

Combine like terms: 17u + -2u = 15u
-18 + 15u = -8 + 2u + -2u

Combine like terms: 2u + -2u = 0
-18 + 15u = -8 + 0
-18 + 15u = -8

Add '18' to each side of the equation.
-18 + 18 + 15u = -8 + 18

Combine like terms: -18 + 18 = 0
0 + 15u = -8 + 18
15u = -8 + 18

Combine like terms: -8 + 18 = 10
15u = 10

Divide each side by '15'.
u = 0.6666666667

Simplifying
u = 0.6666666667

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