15=15-8u

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Solution for 15=15-8u equation: 


Simplifying
15 = 15 + -8u

Add '-15' to each side of the equation.
15 + -15 = 15 + -15 + -8u

Combine like terms: 15 + -15 = 0
0 = 15 + -15 + -8u

Combine like terms: 15 + -15 = 0
0 = 0 + -8u
0 = -8u

Solving
0 = -8u

Solving for variable 'u'.

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

Add '8u' to each side of the equation.
0 + 8u = -8u + 8u
Remove the zero:
8u = -8u + 8u

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

Divide each side by '8'.
u = 0

Simplifying
u = 0

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