列:13.2X+9X=33.3
解:(13.2+9)=33.3
22.2X =33.3
22.2X除22.2=33.32除22.2
X=1.5
2(X-6.2)=8 5(x除1.5)=17.5咋写?
列:13.2X+9X=33.3
解:(13.2+9)=33.3
22.2X =33.3
22.2X除22.2=33.32除22.2
X=1.5
2(X-6.2)=8 5(x除1.5)=17.5咋写?
x÷1.5=17.5
解: x=17.5×1.5
x=26.25