-23=3u+9-11u

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Solution for -23=3u+9-11u equation:


Simplifying
-23 = 3u + 9 + -11u

Reorder the terms:
-23 = 9 + 3u + -11u

Combine like terms: 3u + -11u = -8u
-23 = 9 + -8u

Solving
-23 = 9 + -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.
-23 + 8u = 9 + -8u + 8u

Combine like terms: -8u + 8u = 0
-23 + 8u = 9 + 0
-23 + 8u = 9

Add '23' to each side of the equation.
-23 + 23 + 8u = 9 + 23

Combine like terms: -23 + 23 = 0
0 + 8u = 9 + 23
8u = 9 + 23

Combine like terms: 9 + 23 = 32
8u = 32

Divide each side by '8'.
u = 4

Simplifying
u = 4

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