Question

1. \\(\frac{9 + x}{3} = -20\\)

Explanation:

Step1: Multiply both sides by 3

$$\frac{9+x}{3} \times 3 = -20 \times 3$$
$$9+x = -60$$

Step2: Subtract 9 from both sides

$$9+x - 9 = -60 - 9$$
$$x = -69$$

Answer:

$x = -69$