split77 split77

17-04-2019
Mathematics

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If 3 is added to a certain number, the results is 15 less than three times the number. Find the number

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mkryukova19 mkryukova19

17-04-2019

Answer:

number = 9

Step-by-step explanation:

number = x

3 is added to a number = (x+3) result

3 times the number = 3x

15 less than three times the number = 3x-15

the results is 15 less than three times the number

x+3 = 3x -15

3x-x= 3+15

2x = 18

x=9

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