issemily11 issemily11

26-11-2016
Mathematics

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What is t÷5-4=9 what is t ??

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apologiabiology apologiabiology

26-11-2016

add 4 to boh sides
t/5+4-4=9+4
t/5+0=13
t/5=13
times 5/1 both sides
5t/5=5*13
1t=65

t=65

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