Find the best solutions to your problems with the help of IDNLearn.com's expert users. Get the information you need from our community of experts, who provide detailed and trustworthy answers.

The sum of three numbers is 113 . The second number is 3 times the third. The first number is 7 less than the third . What are the numbers?

Sagot :

number 1 = 17
number 2 = 72
number 3 = 24


work:

the three numbers are symbolized as x, y, and z

x + y + z = 113

number 2 (y) is 3 times the third number (z) so 

y = 3z

so x + 3z + z = 113

the first number (x) is 7 less than than the third number (z) so

x = z - 7

so z -7 + 3z + z = 113

5z - 7 = 113
5z = 120

z = 24

x = 17
y = 72

Hope this helped :)