25randalls 25randalls 09-12-2020 Mathematics contestada I NEED HELP PLZ AND THANK YOU PLZ THIS IS DUE I WILL MARK BRAINESTWrite in y=mx+b Form1.) y=2/5x-12/5 2x-5y=122.) 6x-9y=18 6x+9y=-183.) 4x-5y=-70 y=0.8-14