12=1-8v+3

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Solution for 12=1-8v+3 equation:


Simplifying
12 = 1 + -8v + 3

Reorder the terms:
12 = 1 + 3 + -8v

Combine like terms: 1 + 3 = 4
12 = 4 + -8v

Solving
12 = 4 + -8v

Solving for variable 'v'.

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

Add '8v' to each side of the equation.
12 + 8v = 4 + -8v + 8v

Combine like terms: -8v + 8v = 0
12 + 8v = 4 + 0
12 + 8v = 4

Add '-12' to each side of the equation.
12 + -12 + 8v = 4 + -12

Combine like terms: 12 + -12 = 0
0 + 8v = 4 + -12
8v = 4 + -12

Combine like terms: 4 + -12 = -8
8v = -8

Divide each side by '8'.
v = -1

Simplifying
v = -1

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