3\left(3x+4\right)-6x=-9
solve this step by step
Step 1: Distribute the 3 on the left side of the equation.
3 * 3x + 3 * 4 - 6x = -9
9x + 12 - 6x = -9
Step 2: Combine like terms on the left side of the equation.
(9x - 6x) + 12 = -9
3x + 12 = -9
Step 3: Move the constant term to the right side of the equation.
3x = -9 - 12
3x = -21
Step 4: Divide both sides of the equation by the coefficient of x.
x = -21 / 3
x = -7
Therefore, the solution to the equation is x = -7.