123=-2v+3(1-6v)

Solution for 123=-2v+3(1-6v) equation:

Simplifying
123 = -2v + 3(1 + -6v)
123 = -2v + (1 * 3 + -6v * 3)
123 = -2v + (3 + -18v)

Reorder the terms:
123 = 3 + -2v + -18v

Combine like terms: -2v + -18v = -20v
123 = 3 + -20v

Solving
123 = 3 + -20v

Solving for variable 'v'.

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

Add '20v' to each side of the equation.
123 + 20v = 3 + -20v + 20v

Combine like terms: -20v + 20v = 0
123 + 20v = 3 + 0
123 + 20v = 3

Add '-123' to each side of the equation.
123 + -123 + 20v = 3 + -123

Combine like terms: 123 + -123 = 0
0 + 20v = 3 + -123
20v = 3 + -123

Combine like terms: 3 + -123 = -120
20v = -120

Divide each side by '20'.
v = -6

Simplifying
v = -6