algebra

the larger of two numbers is 1 more than twice the smaller.the sum of the numbers is 20 less than three times the larger.find the numbers

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  1. Look at my answer to Ulises a few lines down for hint.

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  2. i know i just need help setting the equation

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  3. Ok, call big one b
    call small one s
    b = 1 + 2 s
    b + s = 3 b - 20

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  4. can u help me work it out please

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  5. from the first equation you know that you can use the quantity (1 + 2 s) for b
    so do that
    1 + 2 s + s = 3 (1 + 2 s) - 20
    or
    1 + 3 s = 3 + 6 s - 20
    solve that for s, then go back and find b

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  6. b=13,s=6

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