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weqwewe [10]
3 years ago
7

john is twice as old as his son. his son is 5 years older than his sister . in five years to come John will be 3 times as old as

his daughter. how old is his son now?​
Mathematics
1 answer:
trasher [3.6K]3 years ago
8 0

Answer:

5

Step-by-step explanation:

Terrible wording on the question as the "father" is 15 the "son" is 10 and the sister is 0 or just born

J = john

S = son

X = sister

J = 2s

S = 5 + X

3(x+5) = J + 5

J = 2(5+x) = 2x + 10

3x+15 = 2x +10 + 5

x = 0

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