84=4u+13

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Solution for 84=4u+13 equation:


Simplifying
84 = 4u + 13

Reorder the terms:
84 = 13 + 4u

Solving
84 = 13 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
84 + -4u = 13 + 4u + -4u

Combine like terms: 4u + -4u = 0
84 + -4u = 13 + 0
84 + -4u = 13

Add '-84' to each side of the equation.
84 + -84 + -4u = 13 + -84

Combine like terms: 84 + -84 = 0
0 + -4u = 13 + -84
-4u = 13 + -84

Combine like terms: 13 + -84 = -71
-4u = -71

Divide each side by '-4'.
u = 17.75

Simplifying
u = 17.75

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