4*0-2y+2*0-y=180

Solution for 4*0-2y+2*0-y=180 equation:

Simplifying
4 * 0 + -2y + 2 * 0 + -1y = 180

Multiply 4 * 0
0 + -2y + 2 * 0 + -1y = 180

Anything times zero is zero.
0 + -2y + 2 * 0 + -1y = 180

Multiply 2 * 0
0 + -2y + 0 + -1y = 180

Anything times zero is zero.
0 + -2y + 0 + -1y = 180

Reorder the terms:
0 + 0 + -2y + -1y = 180

Combine like terms: 0 + 0 = 0
0 + -2y + -1y = 180
-2y + -1y = 180

Combine like terms: -2y + -1y = -3y
-3y = 180

Solving
-3y = 180

Solving for variable 'y'.

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

Divide each side by '-3'.
y = -60

Simplifying
y = -60