-9u+12=3u-8

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Solution for -9u+12=3u-8 equation:


Simplifying
-9u + 12 = 3u + -8

Reorder the terms:
12 + -9u = 3u + -8

Reorder the terms:
12 + -9u = -8 + 3u

Solving
12 + -9u = -8 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
12 + -9u + -3u = -8 + 3u + -3u

Combine like terms: -9u + -3u = -12u
12 + -12u = -8 + 3u + -3u

Combine like terms: 3u + -3u = 0
12 + -12u = -8 + 0
12 + -12u = -8

Add '-12' to each side of the equation.
12 + -12 + -12u = -8 + -12

Combine like terms: 12 + -12 = 0
0 + -12u = -8 + -12
-12u = -8 + -12

Combine like terms: -8 + -12 = -20
-12u = -20

Divide each side by '-12'.
u = 1.666666667

Simplifying
u = 1.666666667

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