(1-3m分之2)--(2m+5)分之3+(3-2m)分之4,其中m=1/10_数学解答

(1-3m分之2)--(2m+5)分之3+(3-2m)分之4,其中m=1/10

人气：436 ℃　时间：2020-06-16 17:15:37

解答

(1-2/3m)-3/(2m+5)+4/(3-2m)
1-2m/3-3m/2-3/5+4/3-2m
=30-20m-45m-18+40-60m
=52-125m
=52-125x1/10
=52-12.5
=39.5