Question 1015388
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B=brother's age; J=john's age=B+6
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J+4=2(B+4)
(B+6)+4=2(B+4)
B+10=2B+8
2=B
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Brother is 2 years old.
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J=B+6=2+6=8
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ANSWER: John is 8 years old.
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CHECK:
J+4=2(B+4)
8+4=2(2+4)
12=2(6)
12=12
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