-3-7v=7-9v

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Solution for -3-7v=7-9v equation: 


Simplifying
-3 + -7v = 7 + -9v

Solving
-3 + -7v = 7 + -9v

Solving for variable 'v'.

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

Add '9v' to each side of the equation.
-3 + -7v + 9v = 7 + -9v + 9v

Combine like terms: -7v + 9v = 2v
-3 + 2v = 7 + -9v + 9v

Combine like terms: -9v + 9v = 0
-3 + 2v = 7 + 0
-3 + 2v = 7

Add '3' to each side of the equation.
-3 + 3 + 2v = 7 + 3

Combine like terms: -3 + 3 = 0
0 + 2v = 7 + 3
2v = 7 + 3

Combine like terms: 7 + 3 = 10
2v = 10

Divide each side by '2'.
v = 5

Simplifying
v = 5

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