81=4v+13

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Solution for 81=4v+13 equation:


Simplifying
81 = 4v + 13

Reorder the terms:
81 = 13 + 4v

Solving
81 = 13 + 4v

Solving for variable 'v'.

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

Add '-4v' to each side of the equation.
81 + -4v = 13 + 4v + -4v

Combine like terms: 4v + -4v = 0
81 + -4v = 13 + 0
81 + -4v = 13

Add '-81' to each side of the equation.
81 + -81 + -4v = 13 + -81

Combine like terms: 81 + -81 = 0
0 + -4v = 13 + -81
-4v = 13 + -81

Combine like terms: 13 + -81 = -68
-4v = -68

Divide each side by '-4'.
v = 17

Simplifying
v = 17

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