求未知数:35x-5=100.36×5-34x
求未知数:35x-5=100.36×5-34x=357.5x=2.512....
求未知数:35x-5=100.36×5-34x=357.5x=2.512.
展开
夜纳4486
推荐于2016-02-15
·
TA获得超过119个赞
关注
(1)
x-5=10
x-5+5=10+5
x
÷=15
÷ x=25;
(2)0.36×5-
x=
1.8-
x
+x=
+x
1.8-
=
+x-
1.2
÷=
x
÷ x=1.6;
(3)
=
2.5x=7.5×12
2.5x÷2.5=90÷2.5
x=36.
收起
为你推荐: