Respuesta :

Answer: x = 4

Step-by-step explanation:

3x - 11 + 9 = 10

Add 11 to each side

3x + 9 = 21

Subtract 9 from each side

3x = 12

Divide each side by 3

x = 4

Isolate the variable by dividing each side by factors that don't contain the variable. X=4