If we double each side of the second equation, 2x+y=8, we have 4x+2y=16. Explain why the same (x, y) pair that is the solution to the system is also a solution to this new equation. If needed you can support your explanation with a hanger diagram, or by inventing a situation that the equations represent.

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.