13=-2+3u

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Solution for 13=-2+3u equation:


Simplifying
13 = -2 + 3u

Solving
13 = -2 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
13 + -3u = -2 + 3u + -3u

Combine like terms: 3u + -3u = 0
13 + -3u = -2 + 0
13 + -3u = -2

Add '-13' to each side of the equation.
13 + -13 + -3u = -2 + -13

Combine like terms: 13 + -13 = 0
0 + -3u = -2 + -13
-3u = -2 + -13

Combine like terms: -2 + -13 = -15
-3u = -15

Divide each side by '-3'.
u = 5

Simplifying
u = 5

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