3u-8=4

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Solution for 3u-8=4 equation: 


Simplifying
3u + -8 = 4

Reorder the terms:
-8 + 3u = 4

Solving
-8 + 3u = 4

Solving for variable 'u'.

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

Add '8' to each side of the equation.
-8 + 8 + 3u = 4 + 8

Combine like terms: -8 + 8 = 0
0 + 3u = 4 + 8
3u = 4 + 8

Combine like terms: 4 + 8 = 12
3u = 12

Divide each side by '3'.
u = 4

Simplifying
u = 4

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