9u-12=8u-3

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


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

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

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

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

Solving for variable 'u'.

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

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

Combine like terms: 9u + -8u = 1u
-12 + 1u = -3 + 8u + -8u

Combine like terms: 8u + -8u = 0
-12 + 1u = -3 + 0
-12 + 1u = -3

Add '12' to each side of the equation.
-12 + 12 + 1u = -3 + 12

Combine like terms: -12 + 12 = 0
0 + 1u = -3 + 12
1u = -3 + 12

Combine like terms: -3 + 12 = 9
1u = 9

Divide each side by '1'.
u = 9

Simplifying
u = 9

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