0.7143x+15+0.6429x+-9=

Solution for 0.7143x+15+0.6429x+-9= equation:

Simplifying
0.7143x + 15 + 0.6429x + -9 = 0

Reorder the terms:
15 + -9 + 0.7143x + 0.6429x = 0

Combine like terms: 15 + -9 = 6
6 + 0.7143x + 0.6429x = 0

Combine like terms: 0.7143x + 0.6429x = 1.3572x
6 + 1.3572x = 0

Solving
6 + 1.3572x = 0

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 1.3572x = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 1.3572x = 0 + -6
1.3572x = 0 + -6

Combine like terms: 0 + -6 = -6
1.3572x = -6

Divide each side by '1.3572'.
x = -4.42086649

Simplifying
x = -4.42086649