91除以2x等于1.3
问题描述:
91除以2x等于1.3
答
91/2x=1.3;
2x=70;
x=35;
答
91/2x=1.3
2x=91/1.3
x=91/2*1.3
x=35
答
91÷2x=1.3
1.3×2x=91
2.6x=91
x=35
答
第一个应该是+号吧 X+(81 )=91 X-( 1.1)=8.9 (0.51 )X=5.1 (630 )除以X=63