Question

The sum of three numbers is 130 . The first number is 10 more than the third. The second number is 3 times the third. What are the numbers?

Answer 1

Explanation:

Let the third number be x

The first number is 10 more than the third = x + 10

The second is 3 times the third =3x

x+10+3x+x =130

collect like terms

5x =130-10

5x =120

Divide both sides by 5 ( the coefficient of x)

5x/5 =120/5

x =24

CHECK

24+10+3×24+24 =130