5v-42=21

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Solution for 5v-42=21 equation: 


Simplifying
5v + -42 = 21

Reorder the terms:
-42 + 5v = 21

Solving
-42 + 5v = 21

Solving for variable 'v'.

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

Add '42' to each side of the equation.
-42 + 42 + 5v = 21 + 42

Combine like terms: -42 + 42 = 0
0 + 5v = 21 + 42
5v = 21 + 42

Combine like terms: 21 + 42 = 63
5v = 63

Divide each side by '5'.
v = 12.6

Simplifying
v = 12.6

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