Question

Two numbers have a sum of 400 and a difference of 120. What are the two numbers? Set up a system of equations and solve using substitution or elimination.

Answer 1

Answer:

The two numbers are 140 and 260 respectively.

Step-by-step explanation:

Let the number be x and x-120 respectively.

So, x+x-120=400

Or,2x=400+120

Or,2x=520

Or,x=520/2

=260.

So, value of x is 260.

So, x-120= 260-120 = 140.