3(2x-7)= 7(10x-5)= 10(7x+1)= 100(15x-3)= 8(7x+1)=
3(2х-7)=6х-21 7(10х-5)=70х-35 10(7х+1)=70х+10 100(15-3х)=1500+300х 8(7х+1)=56х+8