5V+7=4V-8

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Solution for 5V+7=4V-8 equation:


Simplifying
5V + 7 = 4V + -8

Reorder the terms:
7 + 5V = 4V + -8

Reorder the terms:
7 + 5V = -8 + 4V

Solving
7 + 5V = -8 + 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 + 5V + -4V = -8 + 4V + -4V

Combine like terms: 5V + -4V = 1V
7 + 1V = -8 + 4V + -4V

Combine like terms: 4V + -4V = 0
7 + 1V = -8 + 0
7 + 1V = -8

Add '-7' to each side of the equation.
7 + -7 + 1V = -8 + -7

Combine like terms: 7 + -7 = 0
0 + 1V = -8 + -7
1V = -8 + -7

Combine like terms: -8 + -7 = -15
1V = -15

Divide each side by '1'.
V = -15

Simplifying
V = -15

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