80=5u-15

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Solution for 80=5u-15 equation:


Simplifying
80 = 5u + -15

Reorder the terms:
80 = -15 + 5u

Solving
80 = -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.
80 + -5u = -15 + 5u + -5u

Combine like terms: 5u + -5u = 0
80 + -5u = -15 + 0
80 + -5u = -15

Add '-80' to each side of the equation.
80 + -80 + -5u = -15 + -80

Combine like terms: 80 + -80 = 0
0 + -5u = -15 + -80
-5u = -15 + -80

Combine like terms: -15 + -80 = -95
-5u = -95

Divide each side by '-5'.
u = 19

Simplifying
u = 19

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