-15u+15=-17u-12-13

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Solution for -15u+15=-17u-12-13 equation:


Simplifying
-15u + 15 = -17u + -12 + -13

Reorder the terms:
15 + -15u = -17u + -12 + -13

Reorder the terms:
15 + -15u = -12 + -13 + -17u

Combine like terms: -12 + -13 = -25
15 + -15u = -25 + -17u

Solving
15 + -15u = -25 + -17u

Solving for variable 'u'.

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

Add '17u' to each side of the equation.
15 + -15u + 17u = -25 + -17u + 17u

Combine like terms: -15u + 17u = 2u
15 + 2u = -25 + -17u + 17u

Combine like terms: -17u + 17u = 0
15 + 2u = -25 + 0
15 + 2u = -25

Add '-15' to each side of the equation.
15 + -15 + 2u = -25 + -15

Combine like terms: 15 + -15 = 0
0 + 2u = -25 + -15
2u = -25 + -15

Combine like terms: -25 + -15 = -40
2u = -40

Divide each side by '2'.
u = -20

Simplifying
u = -20

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