题目内容
(1)计算:
①3+(-3.5)-5-(-
)
②(
+1
-2
)×(-24)+(-1)200
(2)解方程:
=1-
.
①3+(-3.5)-5-(-
| 1 |
| 2 |
②(
| 3 |
| 8 |
| 2 |
| 3 |
| 3 |
| 4 |
(2)解方程:
| x-2 |
| 2 |
| 2x+1 |
| 5 |
(1)①原式=3-3.5-5+0.5
=-5;
②原式=-9-40+66+1
=18;
(2)去分母得:5x-10=10-4x-2,
移项合并得:9x=18,
解得:x=2.
=-5;
②原式=-9-40+66+1
=18;
(2)去分母得:5x-10=10-4x-2,
移项合并得:9x=18,
解得:x=2.
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