3=-(x+5)

Solution for 3=-(x+5) equation:

Simplifying
3 = -1(x + 5)

Reorder the terms:
3 = -1(5 + x)
3 = (5 * -1 + x * -1)
3 = (-5 + -1x)

Solving
3 = -5 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
3 + x = -5 + -1x + x

Combine like terms: -1x + x = 0
3 + x = -5 + 0
3 + x = -5

Add '-3' to each side of the equation.
3 + -3 + x = -5 + -3

Combine like terms: 3 + -3 = 0
0 + x = -5 + -3
x = -5 + -3

Combine like terms: -5 + -3 = -8
x = -8

Simplifying
x = -8