42=2u+12

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Solution for 42=2u+12 equation:


Simplifying
42 = 2u + 12

Reorder the terms:
42 = 12 + 2u

Solving
42 = 12 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
42 + -2u = 12 + 2u + -2u

Combine like terms: 2u + -2u = 0
42 + -2u = 12 + 0
42 + -2u = 12

Add '-42' to each side of the equation.
42 + -42 + -2u = 12 + -42

Combine like terms: 42 + -42 = 0
0 + -2u = 12 + -42
-2u = 12 + -42

Combine like terms: 12 + -42 = -30
-2u = -30

Divide each side by '-2'.
u = 15

Simplifying
u = 15

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