15u+80=71u-88

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Solution for 15u+80=71u-88 equation:


Simplifying
15u + 80 = 71u + -88

Reorder the terms:
80 + 15u = 71u + -88

Reorder the terms:
80 + 15u = -88 + 71u

Solving
80 + 15u = -88 + 71u

Solving for variable 'u'.

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

Add '-71u' to each side of the equation.
80 + 15u + -71u = -88 + 71u + -71u

Combine like terms: 15u + -71u = -56u
80 + -56u = -88 + 71u + -71u

Combine like terms: 71u + -71u = 0
80 + -56u = -88 + 0
80 + -56u = -88

Add '-80' to each side of the equation.
80 + -80 + -56u = -88 + -80

Combine like terms: 80 + -80 = 0
0 + -56u = -88 + -80
-56u = -88 + -80

Combine like terms: -88 + -80 = -168
-56u = -168

Divide each side by '-56'.
u = 3

Simplifying
u = 3

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