42=2v+12

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Solution for 42=2v+12 equation:


Simplifying
42 = 2v + 12

Reorder the terms:
42 = 12 + 2v

Solving
42 = 12 + 2v

Solving for variable 'v'.

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

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

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

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

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

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

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

Simplifying
v = 15

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