①(x-1)/2=(4x)/3+1

题目

①(x-1)/2=(4x)/3+1
②(0.1x-0.2)/0.02-(x+1)/0.5=3

答案

①(x-1)/2=4x/3+1 {原式}3(x-1)=2(4x)+6 {去分母,同乘6}3x-3=8x+6 {去括号}3x-8x=3+6 {移项}-5x=9 {合并同类项}x=-9/5 {解x}②(0.1x-0.2)/0.02-(x+1)/0.5=3 {原式}50(0.1x-0.2)-2(x+1)=3 {去分母,同乘1}5x-10-2x-2=3...