7u+15=u

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Solution for 7u+15=u equation:


Simplifying
7u + 15 = u

Reorder the terms:
15 + 7u = u

Solving
15 + 7u = 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.
15 + 7u + -1u = u + -1u

Combine like terms: 7u + -1u = 6u
15 + 6u = u + -1u

Combine like terms: u + -1u = 0
15 + 6u = 0

Add '-15' to each side of the equation.
15 + -15 + 6u = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 6u = 0 + -15
6u = 0 + -15

Combine like terms: 0 + -15 = -15
6u = -15

Divide each side by '6'.
u = -2.5

Simplifying
u = -2.5

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