9u+5=5u-15

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Solution for 9u+5=5u-15 equation:


Simplifying
9u + 5 = 5u + -15

Reorder the terms:
5 + 9u = 5u + -15

Reorder the terms:
5 + 9u = -15 + 5u

Solving
5 + 9u = -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.
5 + 9u + -5u = -15 + 5u + -5u

Combine like terms: 9u + -5u = 4u
5 + 4u = -15 + 5u + -5u

Combine like terms: 5u + -5u = 0
5 + 4u = -15 + 0
5 + 4u = -15

Add '-5' to each side of the equation.
5 + -5 + 4u = -15 + -5

Combine like terms: 5 + -5 = 0
0 + 4u = -15 + -5
4u = -15 + -5

Combine like terms: -15 + -5 = -20
4u = -20

Divide each side by '4'.
u = -5

Simplifying
u = -5

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