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In fourteen year time ,a mother will be twice as old as her son ,four years ago the sum of there ages was 30 years .find how old the mother was when the son was born

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Son =x
Mother=(x+14)×2=2x+28
4years ago  x+2x+28-4=30
3x+24=30
3x=30-24
3x=6
x=6÷3
x=2
Mother=2+4=6

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10
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22
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2/3
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20yrs
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10
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