To solve the equation, we need to combine like terms:
7x + 2x - x - 9x = 9(7 + 2 - 1 - 9)x = 9-1x = 9x = -9
Therefore, the solution to the equation is x = -9.
To solve the equation, we need to combine like terms:
7x + 2x - x - 9x = 9
(7 + 2 - 1 - 9)x = 9
-1x = 9
x = -9
Therefore, the solution to the equation is x = -9.