30-03-2016
Mathematics

contestada

3t – 7 = 5t, then 6t = __?

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apologiabiology apologiabiology

30-03-2016

solve for t
3t-7=5t
subtract 3t
3t-3t-7=5t-3t
0-7=2t
-7=2t
divide 2
-7/2=t
subsitute
6t=6(-7/2)=-42/2=-21

6t=-21

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