ortegaau ortegaau 20-12-2021 Mathematics contestada 1*-2(8d-3e)=a*16d-6eb*-16d+6ec*-16d-6e??????????2*1/3(3x-9y)-2/5(10x-15y)=a*3y-3xb*3x-3yc*-3x-3y??????