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8 August, 08:36

john paid $99 for one algebra book and two geometry book. the cost of a geometry book is $3 less than a algebra book. substitution equation

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  1. 8 August, 09:37
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    A=34, G=31

    Step-by-step explanation:

    G=A-3

    2G+A=99

    plug in for g 2 (A-3) + A=99

    distribute 2 A-3+A=99

    combine like terms 3A-3=99

    solve for a 3A=102 A=34

    plug in a solve for g G=34-3 G=31
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