3(3x+4)-6x=-9

To solve the equation, we will first simplify both sides of the equation:

3(3x+4)-6x=-9

9x + 12 - 6x = -9

Next, combine like terms:

(9x - 6x) + 12 = -9

3x + 12 = -9

Then, subtract 12 from both sides:

3x + 12 - 12 = -9 - 12

3x = -21

Finally, divide both sides by 3 to solve for x:

3x/3 = -21/3

x = -7

Therefore, the solution to the equation is x = -7.