Becky1979 Becky1979

23-06-2017
Mathematics

contestada

The sum of three numbers is 88 . The first number is 7 less than the second. The third number is 3 times the second. What are the numbers?

First number:
Second number:
Third number:

Respuesta :

musiclover10045 musiclover10045

23-06-2017

88 = X +(x-7)+3X

88=5X-7

95 = 5X

X=19

1st number = 12

2nd number = 19

3rd number = 57

12+19+57 = 88

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