12-20.5=v

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Solution for 12-20.5=v equation:


Simplifying
12 + -20.5 = v

Combine like terms: 12 + -20.5 = -8.5
-8.5 = v

Solving
-8.5 = 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.
-8.5 + -1v = v + -1v

Combine like terms: v + -1v = 0
-8.5 + -1v = 0

Add '8.5' to each side of the equation.
-8.5 + 8.5 + -1v = 0 + 8.5

Combine like terms: -8.5 + 8.5 = 0.0
0.0 + -1v = 0 + 8.5
-1v = 0 + 8.5

Combine like terms: 0 + 8.5 = 8.5
-1v = 8.5

Divide each side by '-1'.
v = -8.5

Simplifying
v = -8.5

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