Try Numerade free for 30 days Try Numerade free for 30 days Try Numerade free for 30 days Try Numerade free for 30 days Try Numerade free for 30 days Try Numerade free for 30 days Joana P. 1 Expert Answer We can start by letting x represent the first number. Then the second number can be represented by 2 x + 5 because twice x means multiply by 2 and 5 more than means add 5 Since the sum of the two numbers is 80, we can write the following equation and solve it to find the missing numbers: first number plus second number = 80 Then: x + 2x + 5 = 80 Now combine like terms and use inverse operations to determine the value of x (or the first number): x + 2x + 5 = 80 3x + 5 = 80 3x + 5 - 5 = 80 - 5 3x =75 3x/3 = 75/3 x = 25 So the first number is 25 The second will be 2x + 5 or 2 *25 + 5= 50 + 5 or 55 The second number is 55. Their sum is indeed 80 (i.e.25 + 55 = 80) |