Y-(-3)=0(x+4)

Solution for Y-(-3)=0(x+4) equation:

Simplifying
Y + -1(-3) = 0(x + 4)

Multiply -1 * -3
Y + 3 = 0(x + 4)

Reorder the terms:
3 + Y = 0(x + 4)

Reorder the terms:
3 + Y = 0(4 + x)

Anything times zero is zero.
3 + Y = 0(4 + x)

Solving
3 + Y = 0

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 + Y = 0 + -3

Combine like terms: 3 + -3 = 0
0 + Y = 0 + -3
Y = 0 + -3

Combine like terms: 0 + -3 = -3
Y = -3

Simplifying
Y = -3