3y-6+12y=180

Solution for 3y-6+12y=180 equation:

Simplifying
3y + -6 + 12y = 180

Reorder the terms:
-6 + 3y + 12y = 180

Combine like terms: 3y + 12y = 15y
-6 + 15y = 180

Solving
-6 + 15y = 180

Solving for variable 'y'.

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

Add '6' to each side of the equation.
-6 + 6 + 15y = 180 + 6

Combine like terms: -6 + 6 = 0
0 + 15y = 180 + 6
15y = 180 + 6

Combine like terms: 180 + 6 = 186
15y = 186

Divide each side by '15'.
y = 12.4

Simplifying
y = 12.4