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16 June, 18:07

Work out the value of a and b in the identity.

3ax + 6 - 4 (x + b) = 11x + 14

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  1. 16 June, 19:29
    0
    a=5, b=-2

    Step-by-step explanation:

    If you simplify the equation, you get:

    3ax + 6 - 4x - 4b - 11x - 14 = 0 = >

    3ax - 15x - 4b - 8 = 0

    group together x's and constants:

    (3a-15) x - 8 - 4b = 0

    To make this 0 for all x, we have to find an a such that 3a-15 = 0 and b such that - 8-4b = 0. this leads to a=5, b=-2
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