danapearson danapearson

11-10-2016
Mathematics

contestada

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

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amin112 amin112

11-10-2016

3t-12<-3
3t<-3+12
3t< 9
t< 3

-6t<12
t>-2
Sign changes when multiplying with minus both sides

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apologiabiology apologiabiology

11-10-2016

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

Answer Link

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