u+2(u-9)-2=-50

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Solution for u+2(u-9)-2=-50 equation: 


Simplifying
u + 2(u + -9) + -2 = -50

Reorder the terms:
u + 2(-9 + u) + -2 = -50
u + (-9 * 2 + u * 2) + -2 = -50
u + (-18 + 2u) + -2 = -50

Reorder the terms:
-18 + -2 + u + 2u = -50

Combine like terms: -18 + -2 = -20
-20 + u + 2u = -50

Combine like terms: u + 2u = 3u
-20 + 3u = -50

Solving
-20 + 3u = -50

Solving for variable 'u'.

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

Add '20' to each side of the equation.
-20 + 20 + 3u = -50 + 20

Combine like terms: -20 + 20 = 0
0 + 3u = -50 + 20
3u = -50 + 20

Combine like terms: -50 + 20 = -30
3u = -30

Divide each side by '3'.
u = -10

Simplifying
u = -10

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