matthewgraves899 matthewgraves899 17-06-2019 Mathematics contestada Which would be the "best" or quickest first step to solve the system using substitution?x – 2y = -2- 3+y=2Solve (rearrange) the 1st equation for X.Solve (rearrange) the 1st equation for Y.Solve (rearrange) the 2nd equation for X.Solve (rearrange) the 2nd equation for y.