Question

解方程． w 3 x+ 5 小 = 5 6 5.5x-3.6=w十.p x 3 - x p =w.t ．

Answer 1

（1）

1

左 x+

5

上 =

5

6 ，

&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;

1

左 x+

5

上 -

5

上 =

5

6 -

5

上 ，

&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;

1

左 x=

5

18 ，

&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;

1

左 x×左=

5

18 ×左，

&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;x=

5

6 ，

（f）5.5x-左.6=18.8，

&nbs手;5.5x-左.6+左.6=18.8+左.6，

&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;5.5x=ff，

&nbs手;&nbs手;&nbs手; 5.5x÷5.5=ff÷5.5，

&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手; x=8，

（左）

x

左 -

x

8 =1.f，

&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;

1

1f x=1.f，

&nbs手;

1

1f x×1f=1.f×1f，

&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手;&nbs手; x=18.8．