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27 April, 10:59

The equations 2x+7=3 and bx-10=-2 have the same solution for x. Find the value of b.

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  1. 27 April, 11:50
    0
    Solve both equations for x:

    2x+7 = 3

    2x = - 4

    x = - 2

    Plug x into the equation which contains b:

    b (-2) - 10 = - 2

    -2b = 8

    b = - 4

    Answer:

    b = - 4

    x = - 2
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