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解方程:17-x=0.731625÷x=40x+30%=5250%-33%=34x-38x=57215x+16x=25.
题目详情
解方程:
| 17-x=0.73 |
| x+30%=52 | ||||||||||
| 50%-33%=34 | x-
|
|
▼优质解答
答案和解析
(1)17-x=0.73,
17-x+x=0.73+x,
17=0.73+x,
17-0.73=0.73+-0.73,
x=16.27;
(2)
÷x=40,
÷x×x=40×x,
=40x,
÷40=40x÷40,
x=
;
(3)x+30%=52,
x+30%-30%=52-30%,
x=51.7;
(4)50%x-33%x=34,
17%x=34,
17%x÷17%=34÷17%,
x=200;
(5)x-
x=
,
x=
,
x÷
=
÷
,
x=
;
(6)
x+
x=
,
x=
,
x÷
=
÷
,
x=
.
17-x+x=0.73+x,
17=0.73+x,
17-0.73=0.73+-0.73,
x=16.27;
(2)
| 16 |
| 25 |
| 16 |
| 25 |
| 16 |
| 25 |
| 16 |
| 25 |
x=
| 2 |
| 125 |
(3)x+30%=52,
x+30%-30%=52-30%,
x=51.7;
(4)50%x-33%x=34,
17%x=34,
17%x÷17%=34÷17%,
x=200;
(5)x-
| 3 |
| 8 |
| 5 |
| 7 |
| 5 |
| 8 |
| 5 |
| 7 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 7 |
| 5 |
| 8 |
x=
| 8 |
| 7 |
(6)
| 2 |
| 15 |
| 1 |
| 6 |
| 2 |
| 5 |
| 3 |
| 10 |
| 2 |
| 5 |
| 3 |
| 10 |
| 3 |
| 10 |
| 2 |
| 5 |
| 3 |
| 10 |
x=
| 4 |
| 3 |
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