1.8-8x/1.2 - 1.3-3x = 5x-0.4/0.
问题描述:
1.8-8x/1.2 - 1.3-3x = 5x-0.4/0.
答
(1.8-8x)/1.2 - (1.3-3x)/2 = (5x-0.4)/0.3 (去括号)=>1.8/1.2-8x/1.2 - 1.3/2 +3x/2=5x/0.3 - 0.4/0.3=>3/2 -2x/0.3 -1.3/2 +3x/2=5x/0.3 - 4/3 (x项移到一边,其他到等式另一边)=>5x/0.3+2x/0.3-3x/2=4/3+3/2...