(0.4x+0.9)/0.5-(0.1x-0.5)/0.2=(0.03+0.02x)/0.03
10x(0.4x+0.9)/5-10x(0.1x-0.5)/2=100x(0.03+0.02x)/3
10x6x(0.4x+0.9)-10x15x（0.1x-0.5)=100x10x(0.03+0.02x)
60x(0.4x+0.9)-150x(0.1x-0.5)=1000x(0.03+0.02x)
24x+54-15x+75=30+20x
11x=99
x=9
求一道解方程题,我解了好久解出6个答案,都不一样,一一验算,全错!关联考试,