2(y-1)+y+8=180

Solution for 2(y-1)+y+8=180 equation:

Simplifying
2(y + -1) + y + 8 = 180

Reorder the terms:
2(-1 + y) + y + 8 = 180
(-1 * 2 + y * 2) + y + 8 = 180
(-2 + 2y) + y + 8 = 180

Reorder the terms:
-2 + 8 + 2y + y = 180

Combine like terms: -2 + 8 = 6
6 + 2y + y = 180

Combine like terms: 2y + y = 3y
6 + 3y = 180

Solving
6 + 3y = 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 + 3y = 180 + -6

Combine like terms: 6 + -6 = 0
0 + 3y = 180 + -6
3y = 180 + -6

Combine like terms: 180 + -6 = 174
3y = 174

Divide each side by '3'.
y = 58

Simplifying
y = 58