21分之10x÷3分之2=7分之3

8个回答

x=3/7*2/3*21/10=3/5x(1-1/2-1/3)=1; x/6=1; x=637x=740; x=201.6x=4 ; x=2.53.3x-0.2x=110+200; 3.1x=310; x=1001.02+3x=3.42 ; 3x=3.42-1.02 ; 3x=2.4 ; x=0.88.9x-4.5x=65+67; 4.4x=132; x=306x-3x=14+58; 3x=72; x=2410x-5x=80+20; 5x=100; x=2010x-6x=5+3; 4x=8; x=29.8x+1.4x=420+28; 11.2x=448; x=4013.6x=272; x=20