You can put this solution on YOUR website! after 12 years a man will be 3 times as old as he was 4 years ago. find his present age
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Let his current age be "x":
Equation:
x+12 = 3(x-4)
x + 12 = 3x -12
2x = 24
x = 12 yrs old
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Cheers,
Stan H.
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