0=6+y-4(3+y)

Solution for 0=6+y-4(3+y) equation:

Simplifying
0 = 6 + y + -4(3 + y)
0 = 6 + y + (3 * -4 + y * -4)
0 = 6 + y + (-12 + -4y)

Reorder the terms:
0 = 6 + -12 + y + -4y

Combine like terms: 6 + -12 = -6
0 = -6 + y + -4y

Combine like terms: y + -4y = -3y
0 = -6 + -3y

Solving
0 = -6 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
0 + 3y = -6 + -3y + 3y
Remove the zero:
3y = -6 + -3y + 3y

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

Divide each side by '3'.
y = -2

Simplifying
y = -2