7u-86=u-8

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Solution for 7u-86=u-8 equation:


Simplifying
7u + -86 = u + -8

Reorder the terms:
-86 + 7u = u + -8

Reorder the terms:
-86 + 7u = -8 + u

Solving
-86 + 7u = -8 + u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
-86 + 7u + -1u = -8 + u + -1u

Combine like terms: 7u + -1u = 6u
-86 + 6u = -8 + u + -1u

Combine like terms: u + -1u = 0
-86 + 6u = -8 + 0
-86 + 6u = -8

Add '86' to each side of the equation.
-86 + 86 + 6u = -8 + 86

Combine like terms: -86 + 86 = 0
0 + 6u = -8 + 86
6u = -8 + 86

Combine like terms: -8 + 86 = 78
6u = 78

Divide each side by '6'.
u = 13

Simplifying
u = 13

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