SOLUTION: sams brother is 7 years older than sam. his mother is 4 years less than 3 times sams age. their combined age is 63. how old is sam, his brother, and his mother?

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Question 1050114: sams brother is 7 years older than sam. his mother is 4 years less than 3 times sams age. their combined age is 63. how old is sam, his brother, and his mother?
Answer by hussamuddin(51) About Me  (Show Source):
You can put this solution on YOUR website!
Sam's age = x
his brother's age = x+%2B+7
mother's age = 3x-4
x%2B%28x%2B7%29%2B%283x-4%29=63
x%2Bx%2B7%2B3x-4=63
5x%2B7-4=63
5x%2B3=63
5x=63-3
x=60%2F5
x=12
Sam's age = x = 12
his brother's age = x+%2B+7 = 12%2B7 = 19
mother's age = 3x-4 = 3%2812%29-4 = 36-4 = 32