If you were to move use the substitution method to solve the following system choose the new equation after the expression equivalent to ask from the second equation is subject to dig into the first equation. 2x-3y=-29 x+4y=13 a) 2(4y+13)-3y=-29 b) 2(-4y+13)-3y=-29 c) 2x-3(4y+13)=-29 d) 2x-3(-4y+13)=-29