sebas6870 sebas6870

30-01-2018
Mathematics

contestada

The difference of a number times
7
and
5
is
8
.
Use the variable
x
for the unknown number

Respuesta :

frenchiegirl frenchiegirl

30-01-2018

7 x - 5 = 8
7 x = 8 + 5
7 x = 13
x = 13/7

7 ( 13/7) - 5 = 8
91/7 - 35/7 = 56/7
56/7 = 56/7 = 8

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