tinabmth tinabmth

03-11-2016
Mathematics

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What is the value of t? 3/5t - 4 - 7/10t = -2

A. -20
B. -5
C. 5
D. 20

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Аноним Аноним

03-11-2016

3/5t - 4 - 7/10t = -2
3/5t - 7/10t = -2 + 4
6/10t - 7/10t = 2
-1/10t = 2
t =2 (-10)
t = -20

answer is A. -20

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