-20=5(u-6)-3u

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Solution for -20=5(u-6)-3u equation:


Simplifying
-20 = 5(u + -6) + -3u

Reorder the terms:
-20 = 5(-6 + u) + -3u
-20 = (-6 * 5 + u * 5) + -3u
-20 = (-30 + 5u) + -3u

Combine like terms: 5u + -3u = 2u
-20 = -30 + 2u

Solving
-20 = -30 + 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.
-20 + -2u = -30 + 2u + -2u

Combine like terms: 2u + -2u = 0
-20 + -2u = -30 + 0
-20 + -2u = -30

Add '20' to each side of the equation.
-20 + 20 + -2u = -30 + 20

Combine like terms: -20 + 20 = 0
0 + -2u = -30 + 20
-2u = -30 + 20

Combine like terms: -30 + 20 = -10
-2u = -10

Divide each side by '-2'.
u = 5

Simplifying
u = 5

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