Question

Find the equation that can represent the situation if the sum of two numbers is 56. We also know that the greater number is 4 more than the smaller number.(5 points)

a
x - (x + 4) = 56

b
x (x - 4) = 56

c
x (x + 4) = 56

d
x + (x + 4) = 56

Answer 1

D

Explanation:

So first you would set your two numbers as variables. Let y be the greater number and x be the smaller number. This means that our equation for y will be x + 4. Now all we need to do is add x and y. INSTEAD of using y, we will SUBSTITUDE with the equation for y, x + 4. Now our equation looks like

x + (x + 4) = 56