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

Solving
-20 + U + 2u = 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 + U + 20 + 2u = 50 + 20

Reorder the terms:
-20 + 20 + U + 2u = 50 + 20

Combine like terms: -20 + 20 = 0
0 + U + 2u = 50 + 20
U + 2u = 50 + 20

Combine like terms: 50 + 20 = 70
U + 2u = 70

Add '-2u' to each side of the equation.
U + 2u + -2u = 70 + -2u

Combine like terms: 2u + -2u = 0
U + 0 = 70 + -2u
U = 70 + -2u

Simplifying
U = 70 + -2u

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