3-(-9x)+16x-(-20)=

Solution for 3-(-9x)+16x-(-20)= equation:

Simplifying
3 + -1(-9x) + 16x + -1(-20) = 0

Remove parenthesis around (-9x)
3 + -1 * -9x + 16x + -1(-20) = 0

Multiply -1 * -9
3 + 9x + 16x + -1(-20) = 0

Multiply -1 * -20
3 + 9x + 16x + 20 = 0

Reorder the terms:
3 + 20 + 9x + 16x = 0

Combine like terms: 3 + 20 = 23
23 + 9x + 16x = 0

Combine like terms: 9x + 16x = 25x
23 + 25x = 0

Solving
23 + 25x = 0

Solving for variable 'x'.

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

Add '-23' to each side of the equation.
23 + -23 + 25x = 0 + -23

Combine like terms: 23 + -23 = 0
0 + 25x = 0 + -23
25x = 0 + -23

Combine like terms: 0 + -23 = -23
25x = -23

Divide each side by '25'.
x = -0.92

Simplifying
x = -0.92