The sum of two numbers is 20 and the difference is 12. what are the numbers?
1. create a system of two linear equations to represent this problem.
2. solve the system to find the 2 numbers

1) A system of two linear equations to represent this problem

x+y=20 and x-y=12

2) The numbers are x=16 and y=4

Step-by-step explanation:

Let x and y be the two numbers

Given that the sum of the two numbers is 20

That is

and the difference is 12

That is

1) A system of two linear equations to represent this problem

2). Noe Solve the system to find the 2 numbers:

Adding the equations (1) and (2) we get

_____________

2x=32

Therfore x=16

Now substitute x=16 in equation (1) we get

Therefore y=4

Therefore the numbers are x=16 and y=4

ye

step-by-step explanation:

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values