yannetserrano14 yannetserrano14

20-04-2018
Mathematics

contestada

if a certain number is added to both the numerator and denominator of the fraction 8/9, the result is 6/7. Find the numer.

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mkryukova19 mkryukova19

21-04-2018

[tex] \frac{8+x}{9+x} = \frac{6}{7} 7(8+x)=6(9+x) 56+7x = 54+6x 7x-6x=54-56 x=-2 [/tex]

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