Question

The sum of 3 numbers is 62. The first number can be represented by the variable x. The second number is 7 more than the first number, and the third number is 3 times the first number. What is the third number?

Answer 1

The third number = 33

Explanation:

First number = x

Second number = x + 7

Third number = 3x

x + x + 7 + 3x = 62 Combine like terms

5x + 7 = 62 Subtract 7 from both sides

5x = 62 - 7

5x = 55 Divide by 5

5x/5 = 55/5

x = 11