Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. find all solutions whenever they exist.
x + 3y = 9
3x –y = 7

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat