6u+8=21

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Solution for 6u+8=21 equation: 


Simplifying
6u + 8 = 21

Reorder the terms:
8 + 6u = 21

Solving
8 + 6u = 21

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 + 6u = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 6u = 21 + -8
6u = 21 + -8

Combine like terms: 21 + -8 = 13
6u = 13

Divide each side by '6'.
u = 2.166666667

Simplifying
u = 2.166666667

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