问题 解答题
解方程.
(1)
4
9
x+6=22
(2)x-
3
5
x=36.
答案

(1)

4
9
x+6=22,

4
9
x+6-6=22-6,

4
9
x=16,

4
9
4
9
=16÷
4
9

x=36;

(2)x-

3
5
x=36,

x(1-

3
5
)=36,

2
5
x=36,

2
5
2
5
=36÷
2
5

x=90.

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