3u-6=42

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Solution for 3u-6=42 equation: 


Simplifying
3u + -6 = 42

Reorder the terms:
-6 + 3u = 42

Solving
-6 + 3u = 42

Solving for variable 'u'.

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

Add '6' to each side of the equation.
-6 + 6 + 3u = 42 + 6

Combine like terms: -6 + 6 = 0
0 + 3u = 42 + 6
3u = 42 + 6

Combine like terms: 42 + 6 = 48
3u = 48

Divide each side by '3'.
u = 16

Simplifying
u = 16

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