12.8-0.6x=3.8

12.8-0.6x=3.8 解方程（按顺序解答,3.8+X=12.8 6.4+X=15.6 X-4.8=4.8 1.5-X=0.84 2X+0.82=0.82 3+0.5=7 2X+0.4X=48(并检验)8x—x=14.735x+13x=9.65（x+3）=35x+3.7x+2=16.114x+3x—1.2x=15818—2.5x=13(并检验)1.5x—6=3（并检验）9.5x—5x=277x—0.6x=16 0.6x+2.8x=12.8+1.8x 5.4X+X=12.8求X 5x+x=12.8 X=12.8+0.5X 5.4x+x=12.8 5.4x+x=12.8 0.6×(3.8-x)=1.5 3.8 x-x=0.56 3.8x-x=5. 0.6X+0.8Y=3.8,X=?,Y=? 0.6（x-0.4）+3.8=1.2x+0.56 (8.9-x)/x=0.6 x--0.6x=4.8 x-0.6x=14 0.6x+140 =X (10000-x)/x=0.6