Question

PLSSSS HELP IF YOU TURLY KNOE THISSSS

Answer 1

3x+9 = 42

3x+9 -9= 42 - 9

3x= 33

x=11

Answer 2

Answer: x = 11

Explanation:

Given:

`\displaystyle (3x+9)/(2)=21`

Multiply both sides of the equation by 2:

3x + 9 = 42

Subtract 9 from both sides of the equation:

3x = 33

Divide both sides of the equation by 3:

x = 11