13u+13u+-17u+3=-15

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Solution for 13u+13u+-17u+3=-15 equation: 


Simplifying
13u + 13u + -17u + 3 = -15

Reorder the terms:
3 + 13u + 13u + -17u = -15

Combine like terms: 13u + 13u = 26u
3 + 26u + -17u = -15

Combine like terms: 26u + -17u = 9u
3 + 9u = -15

Solving
3 + 9u = -15

Solving for variable 'u'.

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

Add '-3' to each side of the equation.
3 + -3 + 9u = -15 + -3

Combine like terms: 3 + -3 = 0
0 + 9u = -15 + -3
9u = -15 + -3

Combine like terms: -15 + -3 = -18
9u = -18

Divide each side by '9'.
u = -2

Simplifying
u = -2

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