移项得4x+3x-6x-7x=-77+60
合并同类项得-6x=-17,
系数化为1得x=
| 17 |
| 6 |
(2)方程两边都除以361,得(-x+1)2=
| 16 |
| 361 |
-x+1=±
| 4 |
| 19 |
x=
| 23 |
| 19 |
| 15 |
| 19 |
(3)方程两边都除以2得(x-1)3=-
| 125 |
| 8 |
x-1=-
| 5 |
| 2 |
x=-
| 3 |
| 2 |
(4)去分母得6x+3-12=8x-4-(10x+1)
移项得6x-8x+10x=-4-1-3+12
合并同类项得8x=4,
系数化为1得x=
| 1 |
| 2 |
| 125 |
| 4 |
| 2x+1 |
| 4 |
| 2x−1 |
| 3 |
| 10x+1 |
| 12 |
| 17 |
| 6 |
| 16 |
| 361 |
| 4 |
| 19 |
| 23 |
| 19 |
| 15 |
| 19 |
| 125 |
| 8 |
| 5 |
| 2 |
| 3 |
| 2 |
| 1 |
| 2 |