解:(1)10(200X+X)=11×200X-22.8,
2010X=2200X-22.8,
2010X-2010X=2200X-22.8-2010X,
190X-22.8=0,
190X-22.8+22.8=0+22.8,
190X=22.8,
190X÷190=22.8÷190,
X=0.12;
(2)
=3+
,
5X-10=3+2X+2,
5X-10+10=3+2X+2+10,
5X=2X+15,
5X-2X=2X+15-2X,
3X=15,
3X÷3=15÷3,
X=5.
分析:(1)原式變?yōu)?010X=2200X-22.8,根據(jù)等式的性質(zhì),兩邊同減去2010X,得190X-22.8=0,兩邊同加上22.8,再同除以190即可;
(2)化簡(jiǎn)原式為5X-10=3+2X+2,根據(jù)等式的性質(zhì),兩邊同加10,得5X=2X+15,兩邊同減2X,得3X=15,再同除以3即可.
點(diǎn)評(píng):此題考查了根據(jù)等式的性質(zhì)解方程,即等式兩邊同加、同減、同乘或同除以一個(gè)數(shù)(0除外),等式的左右兩邊仍相等;注意等號(hào)上下要對(duì)齊.