20=4u-16

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Solution for 20=4u-16 equation:


Simplifying
20 = 4u + -16

Reorder the terms:
20 = -16 + 4u

Solving
20 = -16 + 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 = -16 + 4u + -4u

Combine like terms: 4u + -4u = 0
20 + -4u = -16 + 0
20 + -4u = -16

Add '-20' to each side of the equation.
20 + -20 + -4u = -16 + -20

Combine like terms: 20 + -20 = 0
0 + -4u = -16 + -20
-4u = -16 + -20

Combine like terms: -16 + -20 = -36
-4u = -36

Divide each side by '-4'.
u = 9

Simplifying
u = 9

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