15+9u-3=16+-2u-7

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Solution for 15+9u-3=16+-2u-7 equation:


Simplifying
15 + 9u + -3 = 16 + -2u + -7

Reorder the terms:
15 + -3 + 9u = 16 + -2u + -7

Combine like terms: 15 + -3 = 12
12 + 9u = 16 + -2u + -7

Reorder the terms:
12 + 9u = 16 + -7 + -2u

Combine like terms: 16 + -7 = 9
12 + 9u = 9 + -2u

Solving
12 + 9u = 9 + -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.
12 + 9u + 2u = 9 + -2u + 2u

Combine like terms: 9u + 2u = 11u
12 + 11u = 9 + -2u + 2u

Combine like terms: -2u + 2u = 0
12 + 11u = 9 + 0
12 + 11u = 9

Add '-12' to each side of the equation.
12 + -12 + 11u = 9 + -12

Combine like terms: 12 + -12 = 0
0 + 11u = 9 + -12
11u = 9 + -12

Combine like terms: 9 + -12 = -3
11u = -3

Divide each side by '11'.
u = -0.2727272727

Simplifying
u = -0.2727272727

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