13=2u-13

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Solution for 13=2u-13 equation:


Simplifying
13 = 2u + -13

Reorder the terms:
13 = -13 + 2u

Solving
13 = -13 + 2u

Solving for variable 'u'.

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

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

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

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

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

Combine like terms: -13 + -13 = -26
-2u = -26

Divide each side by '-2'.
u = 13

Simplifying
u = 13

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