-9=9+v

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Solution for -9=9+v equation:


Simplifying
-9 = 9 + v

Solving
-9 = 9 + v

Solving for variable 'v'.

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

Add '-1v' to each side of the equation.
-9 + -1v = 9 + v + -1v

Combine like terms: v + -1v = 0
-9 + -1v = 9 + 0
-9 + -1v = 9

Add '9' to each side of the equation.
-9 + 9 + -1v = 9 + 9

Combine like terms: -9 + 9 = 0
0 + -1v = 9 + 9
-1v = 9 + 9

Combine like terms: 9 + 9 = 18
-1v = 18

Divide each side by '-1'.
v = -18

Simplifying
v = -18

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