-3x+9=6x+18

1 answer

To solve the equation -3x + 9 = 6x + 18, we can begin by grouping the x terms on one side of the equation.

First, we can subtract 6x from both sides to eliminate the x term on the right side:

-3x - 6x + 9 = 6x - 6x + 18

Simplifying this expression gives us:

-9x + 9 = 18

Next, we can subtract 9 from both sides to isolate the x term:

-9x + 9 - 9 = 18 - 9

Simplifying once again gives us:

-9x = 9

To solve for x, we can divide both sides by -9:

-9x / -9 = 9 / -9

Simplifying this expression gives us:

x = -1

Therefore, the solution to the equation -3x + 9 = 6x + 18 is x = -1.