-6(3(u)+20)=13+u

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Solution for -6(3(u)+20)=13+u equation: 


Simplifying
-6(3(u) + 20) = 13 + u

Reorder the terms:
-6(20 + 3u) = 13 + u
(20 * -6 + 3u * -6) = 13 + u
(-120 + -18u) = 13 + u

Solving
-120 + -18u = 13 + u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
-120 + -18u + -1u = 13 + u + -1u

Combine like terms: -18u + -1u = -19u
-120 + -19u = 13 + u + -1u

Combine like terms: u + -1u = 0
-120 + -19u = 13 + 0
-120 + -19u = 13

Add '120' to each side of the equation.
-120 + 120 + -19u = 13 + 120

Combine like terms: -120 + 120 = 0
0 + -19u = 13 + 120
-19u = 13 + 120

Combine like terms: 13 + 120 = 133
-19u = 133

Divide each side by '-19'.
u = -7

Simplifying
u = -7

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