3(1-y)+2y=-1

Solution for 3(1-y)+2y=-1 equation:

Simplifying
3(1 + -1y) + 2y = -1
(1 * 3 + -1y * 3) + 2y = -1
(3 + -3y) + 2y = -1

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

Solving
3 + -1y = -1

Solving for variable 'y'.

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

Add '-3' to each side of the equation.
3 + -3 + -1y = -1 + -3

Combine like terms: 3 + -3 = 0
0 + -1y = -1 + -3
-1y = -1 + -3

Combine like terms: -1 + -3 = -4
-1y = -4

Divide each side by '-1'.
y = 4

Simplifying
y = 4