-20=4(u-6)-8u

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Solution for -20=4(u-6)-8u equation:


Simplifying
-20 = 4(u + -6) + -8u

Reorder the terms:
-20 = 4(-6 + u) + -8u
-20 = (-6 * 4 + u * 4) + -8u
-20 = (-24 + 4u) + -8u

Combine like terms: 4u + -8u = -4u
-20 = -24 + -4u

Solving
-20 = -24 + -4u

Solving for variable 'u'.

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

Add '4u' to each side of the equation.
-20 + 4u = -24 + -4u + 4u

Combine like terms: -4u + 4u = 0
-20 + 4u = -24 + 0
-20 + 4u = -24

Add '20' to each side of the equation.
-20 + 20 + 4u = -24 + 20

Combine like terms: -20 + 20 = 0
0 + 4u = -24 + 20
4u = -24 + 20

Combine like terms: -24 + 20 = -4
4u = -4

Divide each side by '4'.
u = -1

Simplifying
u = -1

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