www.5129.net > 解方程.51%2.8x=14.

解方程.51%2.8x=14.

(1)51-2.8x=14.6 51-2.8x+2.8=14.6+2.8x

5x+3.5x=51 解:(5+3.5)x=51 8.5x=51 x=51÷8.5 x=6

解法一、 左边提取x得:(51-1)x=100

看图!!!!!

x:1.7=7:51 51x=1.7*7 x=1.7*7/51 x=11.9/51 x=11

5x +3.5x=51 解:8.5x=51 x=51÷8.5 x=6 检验: 方程左边:5

解:(x/3十2)x51x3十70=580 (x/3+2)X51x3=580一70 (x/3十2)x

8/9x÷1/6=16/51 解:48/9x=16/51 x=16/51x3/16 x=1/1

解: 0.27×3-0.6x=0.51 0.6x=0.81-0.51 0.6x=0.3 x=1/2

3.2X-1.5X=0.51、 1.7X=0.51 X=0.51÷1.7 X=0.3

网站地图

All rights reserved Powered by www.5129.net

copyright ©right 2010-2021。
www.5129.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com