Roy is 11 years old and his uncle is 59 years old. how many years ago was roy ,s uncle 7 times as old as roy.

59-x=7(11-x)=59 yrs

59-x=77-7x

-x+7x-77-59

6x=18

x=18^6=3

so 3 years ago uncle's age is 7 times of Roy's age.

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step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or