5=-15-8u

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Solution for 5=-15-8u equation:


Simplifying
5 = -15 + -8u

Solving
5 = -15 + -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.
5 + 8u = -15 + -8u + 8u

Combine like terms: -8u + 8u = 0
5 + 8u = -15 + 0
5 + 8u = -15

Add '-5' to each side of the equation.
5 + -5 + 8u = -15 + -5

Combine like terms: 5 + -5 = 0
0 + 8u = -15 + -5
8u = -15 + -5

Combine like terms: -15 + -5 = -20
8u = -20

Divide each side by '8'.
u = -2.5

Simplifying
u = -2.5

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