Andre came up with the following puzzle. “I am three years younger than my brother, and I am 2 years older than my sister. My mom's age is one less than three times my brother's age. When you add all our ages, you get 87. What are our ages?” Jada writes this equation for the sum of the ages:

(x) + (x + 3) + (x - 2) + 3(x + 3) - 1 = 87

Match the meaning to each term of the equation.

x

x + 3

(x - 2)

3(x + 3) - 1

87

x = 13

Andre is 13

Brother is 16

Sister is 11

Mom is 47

All together they are 87!

Step-by-step explanation:

x + x + 3 + x - 2 + 3x + 9 - 1 = 87

6x + 9 = 87

6x = 87 - 9

6x = 78

x = 78/6

x = 13

the answer is y = 11.54

hope this : )

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.