| 4 |
| 9 |
| 5 |
| 6 |
| 5 |
| 9 |
| 5 |
| 6 |
| 5 |
| 9 |
| 9 |
| 5 |
| 5 |
| 6 |
| 9 |
| 5 |
x=
| 3 |
| 2 |
(2)x+
| 7 |
| 9 |
| 16 |
| 9 |
| 16 |
| 9 |
| 9 |
| 16 |
| 9 |
| 16 |
x=
| 9 |
| 8 |
(3)11x-50%=16
11x-50%+50%=16+50%,
11x=16.5,
11x÷11=16.5÷11,
x=1.5;
(4)(x+
| 2 |
| 7 |
(x+
| 2 |
| 7 |
x+
| 2 |
| 7 |
x+
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
x=19
| 5 |
| 7 |
| 4 |
| 9 |
| 5 |
| 6 |
| 7 |
| 9 |
| 2 |
| 7 |
| 4 |
| 9 |
| 5 |
| 6 |
| 5 |
| 9 |
| 5 |
| 6 |
| 5 |
| 9 |
| 9 |
| 5 |
| 5 |
| 6 |
| 9 |
| 5 |
| 3 |
| 2 |
| 7 |
| 9 |
| 16 |
| 9 |
| 16 |
| 9 |
| 9 |
| 16 |
| 9 |
| 16 |
| 9 |
| 8 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 7 |
| 5 |
| 7 |