natykoziniewski natykoziniewski

04-12-2016
Mathematics

contestada

o triplo de um mumero somado a 9 e igual a 30 .qual e esse numero

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jhonyy9 jhonyy9

04-12-2016

do you think than i ve understood it right

3x+9=30

3x=21

x = 21/3 = 7

x = 7

hope helped

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