The equation-3x-9=-21 is solved as follows. Supply the correct numbers to complete the solution

Answer 1

The equation -3x-9=-21 can be solved as follows:

First, combine like terms by adding 9 to both sides of the equation:

-3x - 9 + 9 = -21 + 9

This simplifies to:

-3x = -12

Next, divide both sides of the equation by -3 to solve for x:

-3x / -3 = -12 / -3

This simplifies to:

x = 4

Therefore, the solution to the equation -3x-9=-21 is x = 4.