3(x-1)-12=0

Solution for 3(x-1)-12=0 equation:

Simplifying
3(x + -1) + -12 = 0

Reorder the terms:
3(-1 + x) + -12 = 0
(-1 * 3 + x * 3) + -12 = 0
(-3 + 3x) + -12 = 0

Reorder the terms:
-3 + -12 + 3x = 0

Combine like terms: -3 + -12 = -15
-15 + 3x = 0

Solving
-15 + 3x = 0

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 3x = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 3x = 0 + 15
3x = 0 + 15

Combine like terms: 0 + 15 = 15
3x = 15

Divide each side by '3'.
x = 5

Simplifying
x = 5