Solve the system of equations. \begin{aligned} &-7x-6y = 4 & x=-3y+8 \end{aligned}
​

−7x−6y=4
x=−3y+8
​

x=x=x, equals
y=y=y, equals

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x