The solution to the system of equations is the values of and which solve both equations at the samt time. Every equation has an infinite number of solutions. The table shows a few pair a whole numbers which solve the first equation.
You could say that all these number pairs lie along the straight line Here are a few shown, but in reality there are an infinite number of them.
In the same way, you can represent all the solutions for the equation by using points along the line Where can you find the number pair that solves both equations? Right where the lines intersect each other!
If you try putting and into both equations, you will see that both agree.