1-7/3x=2/3x+19 0.4x-1/4=8-1/5x

题目

1-7/3x=2/3x+19 0.4x-1/4=8-1/5x

答案

1-7/3x=2/3x+19
2/3x+7/3x=1-19
3x=-18
x=-6
0.4x-1/4=8-1/5x
0.4x+1/5x=8+1/4
2/5x+1/5x=33/4
3/5x=33/4
x=33/4x5/3
x=55/4