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22-11-2016
Mathematics

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a number is doubled and then the product is increased by 6. This sum is then multiplied by -3, and the result is 54 greater then three times the opposite of the number. what is the number?

Respuesta :

23-11-2016

2x+6)*-3=54
-6×-18=54
-6×=36
×=-6

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