(2х+3)-2(5х-1)=(7х-1)-2(3+11)
(2x+3)-2(5x-1)=(7x-1)-2(3+11) 2x+3-10x+2=7x-1-6+22 2x-7x-10x=-1-6-5 15x=12 x=12/15 x=0.8