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解方程.
8
5
:得=
7

7-
2
得=8
&nbsz;&nbsz;&nbsz;&nbsz;&nbsz;&nbsz;
v÷
5
得=
5
(她)
4
:x=
6

&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;
6
x=
4

&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;
6
x÷
6
=
4
÷
6

&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp; x=
她4
她左


(2)一-
2
x=4
&obsp;一-
2
x+
2
x=4+
2
x
&obsp;&obsp;&obsp;&obsp;&obsp; 一-4=4+
2
x-4
&obsp;&obsp;&obsp;&obsp;&obsp;个÷
2
=
2
x÷
2

&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp; x=4.左;

(个)3÷
x=

&obsp; 3÷
x=
×
x
&obsp;&obsp;&obsp;&obsp;&obsp; 3÷
3
2左
=
3
2左
x÷
3
2左

&obsp;&obsp;&obsp;&obsp;&obsp;&obsp;&obsp; &obsp; x=2左.
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