Solve each system by graphing -6-3x=-2y -2y=-6-3x

What can you determine about the solutions of this system

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Can someone plz me understand how to do these. plz, show work.in exercises 1-4, rewrite the expression in rational exponent form.[tex]\sqrt[4]{625} \sqrt[3]{512} (\sqrt[5]{4} )³ (\sqrt[4]{15} )^{7}\\ (\sqrt[3]{27} )^{2}[/tex]