7=2+4V-7

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Solution for 7=2+4V-7 equation:


Simplifying
7 = 2 + 4V + -7

Reorder the terms:
7 = 2 + -7 + 4V

Combine like terms: 2 + -7 = -5
7 = -5 + 4V

Solving
7 = -5 + 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.
7 + -4V = -5 + 4V + -4V

Combine like terms: 4V + -4V = 0
7 + -4V = -5 + 0
7 + -4V = -5

Add '-7' to each side of the equation.
7 + -7 + -4V = -5 + -7

Combine like terms: 7 + -7 = 0
0 + -4V = -5 + -7
-4V = -5 + -7

Combine like terms: -5 + -7 = -12
-4V = -12

Divide each side by '-4'.
V = 3

Simplifying
V = 3

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