The system of equations
{ 8
4x + 6y= 24
has exactly one (c, y) pair for its solution.
1. If we double each side of the second equation, 2a +y=8, we have 4s + 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 hanger diagrams, or by inventing a
situation that the equations represent.