Given w(x) = 3x + 8, find w(2b + 6).

Discussion in 'Calculator Requests' started by math_celebrity, Nov 26, 2019.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    Given w(x) = 3x + 8, find w(2b + 6).

    Plug the value of 2b + 6 in for x
    w(2b + 6) = 3(2b + 6) + 8

    Multiply through:
    w(2b + 6) = 6b + 18 + 8

    Group like terms:
    w(2b + 6) = 6b + 26
     

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