Question 1167897
Eric's age = x
Grazille's age = 2x
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(x + 8)(2x + 8) = 384
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2x² + 24x + 64 = 384
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2x² + 24x - 320 = 0
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x² + 12x - 160 = 0
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(x - 8)(x + 20) = 0
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x = 8 and x = -20
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Obviously, Eric's age cannot be a negative number, so we are left with x = 8.
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