-6u+21=51

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Solution for -6u+21=51 equation: 


Simplifying
-6u + 21 = 51

Reorder the terms:
21 + -6u = 51

Solving
21 + -6u = 51

Solving for variable 'u'.

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

Add '-21' to each side of the equation.
21 + -21 + -6u = 51 + -21

Combine like terms: 21 + -21 = 0
0 + -6u = 51 + -21
-6u = 51 + -21

Combine like terms: 51 + -21 = 30
-6u = 30

Divide each side by '-6'.
u = -5

Simplifying
u = -5

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