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

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


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

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

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

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

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

Solving
50 = -20 + 3u

Solving for variable 'u'.

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

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

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

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

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

Combine like terms: -20 + -50 = -70
-3u = -70

Divide each side by '-3'.
u = 23.33333333

Simplifying
u = 23.33333333

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