45=5u-15

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Solution for 45=5u-15 equation:


Simplifying
45 = 5u + -15

Reorder the terms:
45 = -15 + 5u

Solving
45 = -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.
45 + -5u = -15 + 5u + -5u

Combine like terms: 5u + -5u = 0
45 + -5u = -15 + 0
45 + -5u = -15

Add '-45' to each side of the equation.
45 + -45 + -5u = -15 + -45

Combine like terms: 45 + -45 = 0
0 + -5u = -15 + -45
-5u = -15 + -45

Combine like terms: -15 + -45 = -60
-5u = -60

Divide each side by '-5'.
u = 12

Simplifying
u = 12

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