I WILL GIVE BRANLIEST IF YOU ANSWER THIS a grandfather is 9 times older than his granddaughter. In 8 years the grandfather will be 5 times older than his granddaughter. How old is each of them now? PLSSS I NEED QUICK:(

The granddaughter is 6 years old and the grandfather is 60 years old.

Step-by-step explanation: Present the age of the granddaughter as X years.

10x = x + 54

10x - x = 54

9x = 54

x = 54/9 = 6 years.

So, granddaughter’s age = 6 years and grandfather’s age = 10 x 6 = 60 years.

Hope this helps love! ^-^

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x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18