解方程:
1.1又8分之1-x=24分之7
x=1+1/8-7/24;
x=9/8-7/24
x=27/24-7/24;
x=20/24;
x=5/6;
2.2x+5分之2=5分之22
2x=22/5-2/5;
2x=20/5;
2x=4;
x=2;
3.x-(4分之3+5分之1)=20分之9
x=9/20+3/4+1/5;
x=9/20+15/20+4/20
x=28/20;
x=7/5;
解方程:
1.1又8分之1-x=24分之7
x=1+1/8-7/24;
x=9/8-7/24
x=27/24-7/24;
x=20/24;
x=5/6;
2.2x+5分之2=5分之22
2x=22/5-2/5;
2x=20/5;
2x=4;
x=2;
3.x-(4分之3+5分之1)=20分之9
x=9/20+3/4+1/5;
x=9/20+15/20+4/20
x=28/20;
x=7/5;