combining like terms

how do I solve this problem
b + 18 + 3b = 74

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  1. b + 18 + 3b = 74
    b + 3b = 4b

    4b + 18 = 74

    Subtract 18 from 74

    4b = 56

  2. combine the b's first
    4b+18=74
    subtract 18 from each side
    4b+18-18=74-18
    4b=56
    divide each side by 4
    b= 14

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