3-(x+4)=-15

Solution for 3-(x+4)=-15 equation:

Simplifying
3 + -1(x + 4) = -15

Reorder the terms:
3 + -1(4 + x) = -15
3 + (4 * -1 + x * -1) = -15
3 + (-4 + -1x) = -15

Combine like terms: 3 + -4 = -1
-1 + -1x = -15

Solving
-1 + -1x = -15

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + -1x = -15 + 1

Combine like terms: -1 + 1 = 0
0 + -1x = -15 + 1
-1x = -15 + 1

Combine like terms: -15 + 1 = -14
-1x = -14

Divide each side by '-1'.
x = 14

Simplifying
x = 14