ceramicbong1724 ceramicbong1724

08-06-2018
Mathematics

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F 9 is added to twice a number and this sum is multiplied by 4, the result is the same as if the number is multiplied by 4 and 12 is added to the product. what is the number? the number is negative 6.

Respuesta :

calculista calculista

17-06-2018

let
x---------> the number

we know that
[9+2x]*4=4x+12
36+8x=4x+12
8x-4x=12-36
4x=-24
x=-24/4
x=-6

the answer is
-6

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