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8 May, 00:58

Enter values of a and b for which x=4 is a solution of the equation shown.

ax+4=5x+b

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Answers (2)
  1. 8 May, 01:33
    0
    4a+4=20+b

    If a = 5 and b = 4

    then the equation would be:

    20+4=20+4

    24 = 24

    That works out to be true

    A = 5 B = 4 X = 4
  2. 8 May, 02:19
    0
    Ax+4=5x+b ... 1

    Substituting x=0 into 1,

    0+4=0+b

    b=4

    Substituting b=4 into 1,

    ax+4=5x+4

    ax+4-5x-4=0

    ax-5x=0

    ax=5x

    a=5x/x

    a=5

    Therefore, a=5 and b=4
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