20x+39-8x-75=5x+9+3x+3

Solution for 20x+39-8x-75=5x+9+3x+3 equation:

Simplifying
20x + 39 + -8x + -75 = 5x + 9 + 3x + 3

Reorder the terms:
39 + -75 + 20x + -8x = 5x + 9 + 3x + 3

Combine like terms: 39 + -75 = -36
-36 + 20x + -8x = 5x + 9 + 3x + 3

Combine like terms: 20x + -8x = 12x
-36 + 12x = 5x + 9 + 3x + 3

Reorder the terms:
-36 + 12x = 9 + 3 + 5x + 3x

Combine like terms: 9 + 3 = 12
-36 + 12x = 12 + 5x + 3x

Combine like terms: 5x + 3x = 8x
-36 + 12x = 12 + 8x

Solving
-36 + 12x = 12 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-36 + 12x + -8x = 12 + 8x + -8x

Combine like terms: 12x + -8x = 4x
-36 + 4x = 12 + 8x + -8x

Combine like terms: 8x + -8x = 0
-36 + 4x = 12 + 0
-36 + 4x = 12

Add '36' to each side of the equation.
-36 + 36 + 4x = 12 + 36

Combine like terms: -36 + 36 = 0
0 + 4x = 12 + 36
4x = 12 + 36

Combine like terms: 12 + 36 = 48
4x = 48

Divide each side by '4'.
x = 12

Simplifying
x = 12