Simplifying
6x + 4 + 15 + -7x = 0
Reorder the terms:
4 + 15 + 6x + -7x = 0
Combine like terms: 4 + 15 = 19
19 + 6x + -7x = 0
Combine like terms: 6x + -7x = -1x
19 + -1x = 0
Solving
19 + -1x = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-19' to each side of the equation.
19 + -19 + -1x = 0 + -19
Combine like terms: 19 + -19 = 0
0 + -1x = 0 + -19
-1x = 0 + -19
Combine like terms: 0 + -19 = -19
-1x = -19
Divide each side by '-1'.
x = 19
Simplifying
x = 19