Answer:
x = 9
Step-by-step explanation:
Move all terms containing x to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + -9 + -1x = 0 + -9
Combine like terms: 9 + -9 = 0
0 + -1x = 0 + -9
-1x = 0 + -9
Combine like terms: 0 + -9 = -9
-1x = -9
Divide each side by '-1'.
x = 9
