To solve the equation \( 7(x - 9) = -21 \), follow these steps: 1. **Distribute the 7 on the left side**: \[ 7x - 63 = -21 \] 2. **Add 63 to both sides**: \[ 7x - 63 + 63 = -21 + 63 \] \[ 7x = 42 \] 3. **Divide both sides by 7**: \[ x = \frac{42}{7} \] \[ x = 6 \] Thus, the solution to the equation is \( x = 6 \).

7(x-9)=-21

1 answer

To solve the equation \( 7(x - 9) = -21 \), follow these steps:

Distribute the 7 on the left side: \[ 7x - 63 = -21 \]
Add 63 to both sides: \[ 7x - 63 + 63 = -21 + 63 \] \[ 7x = 42 \]
Divide both sides by 7: \[ x = \frac{42}{7} \] \[ x = 6 \]

Thus, the solution to the equation is \( x = 6 \).