The equation −3x−9=−21 is solved as follows. Supply the correct numbers to complete the solution.(1 point) −3x−9=−21 −3x= Add 9 to both sides. x= Divide both sides by −3.

To complete the solution, we can use the following steps:

−3x − 9 = −21
−3x = −21 + 9 (Adding 9 to both sides)
−3x = -12 (Simplifying the right side)
x = -12 ÷ -3 (Dividing both sides by -3)
x = 4 (Simplifying the right side)

Therefore, the correct numbers to complete the solution are 9 and -3.

To complete the solution, we need to perform the steps mentioned:

1. Start with the equation: -3x - 9 = -21
2. Add 9 to both sides to isolate the variable term: -3x = -21 + 9
3. Simplify the right side: -3x = -12
4. Divide both sides by -3 to solve for x: x = (-12) / (-3)

The correct numbers for the solution are:
-21 + 9 = -12
-12 / -3 = 4

Therefore, the completed solution is:
-3x - 9 = -21
-3x = -12
x = 4

To solve the equation −3x−9=−21, you follow these steps:

1. Start with the equation: −3x−9=−21
2. Add 9 to both sides of the equation to isolate the term with x. This gives you: −3x−9+9=−21+9
3. Simplify: −3x=−12
4. To solve for x, divide both sides of the equation by −3: −3x/−3=−12/−3
5. Simplify: x=4

Therefore, the correct numbers to complete the solution are:
−3x−9=−21
−3x=−12
x=4