Respuesta :

jcherry99

Answer:

x = 6

Step-by-step explanation:

Equation

(1 + 5 + 10 + x)/4 = 5.5                    Multiply both sides by 4

Solution

4* (1 + 5 + 10 + x ) /4 = 5.5 * 4

16 + x = 22                                     Subtract 16 from both sides

16-16+x = 22- 16

x = 6