Question

The sum of two numbers is 40. The second number is 5 less than twice the first number. Let x represent the first number

and let y represent the second number. What is the value of the first number? Use the table to guess and check.
Numbers
Х
у
x+y=40
y=2x-5
15
20
25
30

Answer 1

The answer would be 25 because your trying to find less of the number

Answer 2

Explanation:

Double 15 x 2 = 30 -5 =25 +original 15 would be 40 answer is 15