3y+6=y-1

Solution for 3y+6=y-1 equation:

Simplifying
3y + 6 = y + -1

Reorder the terms:
6 + 3y = y + -1

Reorder the terms:
6 + 3y = -1 + y

Solving
6 + 3y = -1 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
6 + 3y + -1y = -1 + y + -1y

Combine like terms: 3y + -1y = 2y
6 + 2y = -1 + y + -1y

Combine like terms: y + -1y = 0
6 + 2y = -1 + 0
6 + 2y = -1

Add '-6' to each side of the equation.
6 + -6 + 2y = -1 + -6

Combine like terms: 6 + -6 = 0
0 + 2y = -1 + -6
2y = -1 + -6

Combine like terms: -1 + -6 = -7
2y = -7

Divide each side by '2'.
y = -3.5

Simplifying
y = -3.5