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17-12-2016
Mathematics

contestada

When 5 is added to 2 times a number, the result is 45. find the number.
a. 20
b. 45
c. 5
d. 2?

Respuesta :

yixuann yixuann

18-12-2016

a.

let the number be n.
2n+5=45
2n=40
n=20

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