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17 February, 15:55

Solve for z. 3z + 1 = 4z + 19 z =

+2
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  1. 17 February, 16:23
    0
    3z + 1 = 4z + 19

    Subtract 4z from each side

    3z + 1 - 4z = 4z + 19 - 4z

    -z + 1 = 19

    Subtract 1 from each side

    -z + 1 - 1 = 19 - 1

    -z = 18

    Divide each side by - 1

    -z : - 1 = 18 : - 1

    z = - 18
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