15=-5u

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Solution for 15=-5u equation:


Simplifying
15 = -5u

Solving
15 = -5u

Solving for variable 'u'.

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

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

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

Add '-15' to each side of the equation.
15 + -15 + 5u = 0 + -15

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

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

Divide each side by '5'.
u = -3

Simplifying
u = -3

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