15+2u=5u-18

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Solution for 15+2u=5u-18 equation:


Simplifying
15 + 2u = 5u + -18

Reorder the terms:
15 + 2u = -18 + 5u

Solving
15 + 2u = -18 + 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.
15 + 2u + -5u = -18 + 5u + -5u

Combine like terms: 2u + -5u = -3u
15 + -3u = -18 + 5u + -5u

Combine like terms: 5u + -5u = 0
15 + -3u = -18 + 0
15 + -3u = -18

Add '-15' to each side of the equation.
15 + -15 + -3u = -18 + -15

Combine like terms: 15 + -15 = 0
0 + -3u = -18 + -15
-3u = -18 + -15

Combine like terms: -18 + -15 = -33
-3u = -33

Divide each side by '-3'.
u = 11

Simplifying
u = 11

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