u-5=-21-5u

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Solution for u-5=-21-5u equation:


Simplifying
u + -5 = -21 + -5u

Reorder the terms:
-5 + u = -21 + -5u

Solving
-5 + u = -21 + -5u

Solving for variable 'u'.

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

Add '5u' to each side of the equation.
-5 + u + 5u = -21 + -5u + 5u

Combine like terms: u + 5u = 6u
-5 + 6u = -21 + -5u + 5u

Combine like terms: -5u + 5u = 0
-5 + 6u = -21 + 0
-5 + 6u = -21

Add '5' to each side of the equation.
-5 + 5 + 6u = -21 + 5

Combine like terms: -5 + 5 = 0
0 + 6u = -21 + 5
6u = -21 + 5

Combine like terms: -21 + 5 = -16
6u = -16

Divide each side by '6'.
u = -2.666666667

Simplifying
u = -2.666666667

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