3+5x=x-9

Solution for 3+5x=x-9 equation:

Simplifying
3 + 5x = x + -9

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

Solving
3 + 5x = -9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
3 + 5x + -1x = -9 + x + -1x

Combine like terms: 5x + -1x = 4x
3 + 4x = -9 + x + -1x

Combine like terms: x + -1x = 0
3 + 4x = -9 + 0
3 + 4x = -9

Add '-3' to each side of the equation.
3 + -3 + 4x = -9 + -3

Combine like terms: 3 + -3 = 0
0 + 4x = -9 + -3
4x = -9 + -3

Combine like terms: -9 + -3 = -12
4x = -12

Divide each side by '4'.
x = -3

Simplifying
x = -3