ncry.net
当前位置:首页 >> 用方程解答:10.2%5x=2.2 >>

用方程解答:10.2%5x=2.2

10.2-5x=2.2 -5x=2.2-10.2 -5x=-8 x=8/5 x=1.6

移项,把2.2移到左边,5X移到右边,这样5X就等于8 X等于106

10.2-5x=2.2 解:5x=10.2-2.2 5x=8 x=8÷5 x=1.6

5x = 10.2-2.25x=8x=8除以5x=1.6

5x-2=2.2 5x=2.2+2 5x=4.2 x=4.2÷5 x=0.9

x+10=2√5xx-2√5x+(√5)=-5(x-√5)=-5 评论0 0 0

5.6x-3.8=1.85.6x=3.8+1.85.6x=5.6x=110.2-5x=2.25x=10.2-2.25x=8x=1.64.8x+0.6=29.74.8x=29.7-0.64.8x=29.1x=6.1x除以7.2=5x=7.2*5x=362.5x+3.5=18.52.5x=18.5-3.52.5x=15x=67.5*【x+1】=15x+1=2x=1

(5x)%+(6x)%=2.25x+6x=22011x=220x=20

(1)1.3÷x=0.52, 1.3÷x*x=0.52*x, 1.3=0.52x,0.52x=1.3,0.52x÷0.52=1.3÷0.52, x=2.5;(2)10.2-5x=2.2, 10.2-5x+5x=2.2+5x, 10.2=2.2+5x,2.2+5x=10.2, 2.2+5x-2.2=10.2-2.2, 5x=8,

①5x-2=2.2, 5x-2+2=2.2+2, 5x=4.2, 5x÷5=4.2÷5, x=0.84;②3x+2x=5.5, 5x=5.5, 5x÷5=5.5÷5, x=1.1;③x÷3 4 =4 3 , x*4 3 =4 3 ,x*4 3 *3 4 =4 3 *3 4 , x=1.

相关文档
lstd.net | qimiaodingzhi.net | 9371.net | lhxq.net | alloyfurniture.com | 网站首页 | 网站地图
All rights reserved Powered by www.ncry.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com