Question 821472: after 4 years father's age will be 3 times as his son and 6 years ago father's age was 7 times as his son find their present ages ? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
(x + 4) = 3(y + 4)
(x - 6) = 7(y - 6)
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x + 4 = 3y + 12
x - 6 = 7y - 42
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put the system of linear equations into standard form
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x - 3y = 8
x - 7y = -36
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answer:
x= father = 41
y= son = 11
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