Father 7

The father is six times older than his son. After four years, the father will only be four times older. What are their present ages?

Final Answer:

f =  36
s =  6

Step-by-step explanation:


f=6s
f+4 = 4(s+4)

f=6·s
f+4 = 4·(s+4)

f-6s = 0
f-4s = 12

Row 2 - Row 1 → Row 2
f-6s = 0
2s = 12


s = 12/2 = 6
f = 0+6s = 0+6 · 6 = 36

f = 36
s = 6

Our linear equations calculator calculates it.



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Showing 1 comment:
Jessie
Nice problem





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