-18=-5+u

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Solution for -18=-5+u equation:


Simplifying
-18 = -5 + u

Solving
-18 = -5 + 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.
-18 + -1u = -5 + u + -1u

Combine like terms: u + -1u = 0
-18 + -1u = -5 + 0
-18 + -1u = -5

Add '18' to each side of the equation.
-18 + 18 + -1u = -5 + 18

Combine like terms: -18 + 18 = 0
0 + -1u = -5 + 18
-1u = -5 + 18

Combine like terms: -5 + 18 = 13
-1u = 13

Divide each side by '-1'.
u = -13

Simplifying
u = -13

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