emilyperez1990ep emilyperez1990ep 19-03-2024 Mathematics contestada For the following system, if you isolated x in the second equation to use the substitution method, what expression would you substitute into the first equation? (1 point) 3x y = 8 −x − 2y = −10 −2y 10 2y 10 2y − 10 −2y − 10