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13-05-2017
Mathematics

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Forty-eight decreased by a number is the same as the difference of four times the number and seven. Find the number

Respuesta :

13-05-2017

Turn the text into an eqation:

48-x = 4x-7
5x = 55
x = 11

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ghanami ghanami

13-05-2017

hello : let x this number
4x-7 = 48-x
4x+x-7=48-x+x
5x-7 =48
5x-7+7 = 48+7
5x=55
x=55/5=11

Answer Link

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