21-5u=-48

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Solution for 21-5u=-48 equation: 


Simplifying
21 + -5u = -48

Solving
21 + -5u = -48

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 + -5u = -48 + -21

Combine like terms: 21 + -21 = 0
0 + -5u = -48 + -21
-5u = -48 + -21

Combine like terms: -48 + -21 = -69
-5u = -69

Divide each side by '-5'.
u = 13.8

Simplifying
u = 13.8

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