-20=4u+8

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Solution for -20=4u+8 equation:


Simplifying
-20 = 4u + 8

Reorder the terms:
-20 = 8 + 4u

Solving
-20 = 8 + 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 = 8 + 4u + -4u

Combine like terms: 4u + -4u = 0
-20 + -4u = 8 + 0
-20 + -4u = 8

Add '20' to each side of the equation.
-20 + 20 + -4u = 8 + 20

Combine like terms: -20 + 20 = 0
0 + -4u = 8 + 20
-4u = 8 + 20

Combine like terms: 8 + 20 = 28
-4u = 28

Divide each side by '-4'.
u = -7

Simplifying
u = -7

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