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13 April, 13:14

Solve for t. 3t - 12 < - 3 and - 6t <12

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Answers (2)
  1. 13 April, 13:31
    0
    3t-12<-3

    3t<-3+12

    3t< 9

    t< 3

    -6t<12

    t>-2

    Sign changes when multiplying with minus both sides
  2. 13 April, 13:35
    0
    3t-12<-3

    add 12 both sides

    3t<9

    divide both sides by 3

    t<3

    -6t<12

    divide both sides by - 6, don't forget to flip sign since multiplying/dividing by a negative

    t>-2
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