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13 October, 07:13

There are 17 more girls than boys. There are 431 students in all. How many boys are there

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  1. 13 October, 09:10
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    Let g = number of girls, and b = number of boys

    g = 17 + b

    431 = g + b

    so, after substitution

    431 = (17+b) + b

    431 = 17 + 2b

    Solve for b, and you will get your answer.
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