57=5u+12

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Solution for 57=5u+12 equation:


Simplifying
57 = 5u + 12

Reorder the terms:
57 = 12 + 5u

Solving
57 = 12 + 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.
57 + -5u = 12 + 5u + -5u

Combine like terms: 5u + -5u = 0
57 + -5u = 12 + 0
57 + -5u = 12

Add '-57' to each side of the equation.
57 + -57 + -5u = 12 + -57

Combine like terms: 57 + -57 = 0
0 + -5u = 12 + -57
-5u = 12 + -57

Combine like terms: 12 + -57 = -45
-5u = -45

Divide each side by '-5'.
u = 9

Simplifying
u = 9

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