Mathematics, 17.07.2019 06:00 swilks
If 20 is added to one-third of a number, the result is the double of the number. what is the number?
Answers: 2
.
. The word "of" means to multiply. So if we add 20 to that, and it is equal to double the unknown (that is 2x), the equation looks like this: 
. Start by multiplying everything by 3 to get rid of the fraction and get 60 + x = 6x. Now subtract an x from both sides and get 60 = 5x and x = 12. So the number is 12
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If 20 is added to one-third of a number, the result is the double of the number. what is the number?...
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