math

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|4x - 3| < 12 is equivalent to

a. -9/4 < x < 15/4
b. -15/4 < x < 9/4
c. none of these
d. -16/3 < x < 8/3
e. -8/3 < x < 16/3

  • math -

    4x-3<12 or -4x+3<12
    4x<15 or -4x<9
    x<15/4 or x>-9/4
    so
    -9/4<x<15/4

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