Question 927020: Barry is 8 years older than his sister. In 3 years, he will be twice as old as she will be then. How old is each now? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = barry age
y = sister age
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x = y + 8
x + 3 = 2(y + 3)
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put the system of linear equations into standard form
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x - y = 8
x + 3 = 2y + 6
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x - y = 8
x - 2y = 3
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solution:
x = barry age = 13
y = sister age = 5
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