解方程 (6x-0.6)/7-(9x-0.4)/4=-(4x+0.1)/3
问题描述:
解方程 (6x-0.6)/7-(9x-0.4)/4=-(4x+0.1)/3
答
(6x-0.6)/7-(9x-0.4)/4=-(4x+0.1)/3(60x-6)/70-(90x-4)/40=-(40x+1)/3072000x-7200-189000x+8400=-112000x-280072000x-189000x+112000x=-2800+7200-8400-5000x=-4000x=0.8