2(x-3)=17 2x-2x3=17 2x-6=17 x=17+6÷2 x=11.5 望采纳~
2(x-3)=17x-3=17/2x-3=8.5x=8.5谢谢,请采纳
2(x-3)=17 x-3=8.5x=11.5
2(x-3)=172x-6=172x=23x=23/2