Question

The sum of two numbers is 20.If one number is 4 more than the other, find two numbers​

Answer 1

Write an equation:

Let one number = X, then the second number would be (x+4)

Now you have x + (x+4) = 20

Simplify:

2x+4 = 20

Subtract 4 from both sides:

2x = 16

Divide both sides by 2:

x = 8

The numbers are 8 and 12