9x-39x+42=0

Solution for 9x-39x+42=0 equation:

Simplifying
9x + -39x + 42 = 0

Reorder the terms:
42 + 9x + -39x = 0

Combine like terms: 9x + -39x = -30x
42 + -30x = 0

Solving
42 + -30x = 0

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + -30x = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -30x = 0 + -42
-30x = 0 + -42

Combine like terms: 0 + -42 = -42
-30x = -42

Divide each side by '-30'.
x = 1.4

Simplifying
x = 1.4