The equation −3x−9=−21

Question

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
.

Answer 1

Let's solve the equation step-by-step and fill in the blanks accordingly.

Starting with the equation:

\[ -3x - 9 = -21 \]

1. Add 9 to both sides:

\[ -3x - 9 + 9 = -21 + 9 \]

This simplifies to:

\[ -3x = -12 \]

So, the first blank is:

\[ -3x = -12 \]

2. Now, divide both sides by -3:

\[ x = \frac{-12}{-3} \]

This simplifies to:

\[ x = 4 \]

So, the second blank is:

\[ x = 4 \]

Putting it all together, the completed solution is:

\[ -3x - 9 = -21 \] \[ -3x = -12 \] \[ x = 4 \]

Answer 2

12 is wrong