9x + 12 = 3x -6

1 answer

To solve the equation 9x + 12 = 3x - 6:

First, we can simplify both sides of the equation:

9x + 12 - 12 = 3x - 6 - 12

This simplifies to:

9x = 3x - 18

Next, we can move the 3x term to the left side of the equation by subtracting 3x from both sides:

9x - 3x = 3x - 3x - 18

This simplifies to:

6x = -18

To isolate the variable x, we can divide both sides of the equation by 6:

6x/6 = -18/6

This simplifies to:

x = -3

Therefore, the solution to the equation 9x + 12 = 3x - 6 is x = -3.