题目内容
解下列方程:
(1)
z+
=
z-
;
(2)
(2x-1)-3(
x+
)=
;
(3)
+2=
.
(1)
| 11 |
| 9 |
| 2 |
| 7 |
| 2 |
| 9 |
| 5 |
| 7 |
(2)
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
| x |
| 2 |
(3)
| 3x-2 |
| 5 |
| x+6 |
| 5 |
(1)77z+18=14z-45,
77z-14z=-45-18,
63z=-63,
z=-1;
(2)3(2x-1)-3(4x+3)=3x,
6x-3-12x-9=3x,
-9x=12,
x=-
;
(3)3x-2+10=x+6,
2x=-2,
x=-1.
77z-14z=-45-18,
63z=-63,
z=-1;
(2)3(2x-1)-3(4x+3)=3x,
6x-3-12x-9=3x,
-9x=12,
x=-
| 4 |
| 3 |
(3)3x-2+10=x+6,
2x=-2,
x=-1.
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