45-u=8u

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Solution for 45-u=8u equation:


Simplifying
45 + -1u = 8u

Solving
45 + -1u = 8u

Solving for variable 'u'.

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

Add '-8u' to each side of the equation.
45 + -1u + -8u = 8u + -8u

Combine like terms: -1u + -8u = -9u
45 + -9u = 8u + -8u

Combine like terms: 8u + -8u = 0
45 + -9u = 0

Add '-45' to each side of the equation.
45 + -45 + -9u = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -9u = 0 + -45
-9u = 0 + -45

Combine like terms: 0 + -45 = -45
-9u = -45

Divide each side by '-9'.
u = 5

Simplifying
u = 5

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