7x?1 |
0.024 |
1?0.2x |
0.018 |
5x+1 |
0.012 |
兩邊同時乘以
1 |
1000 |
7x?1 |
24 |
1?0.2x |
18 |
5x+1 |
12 |
兩邊同時乘以72得:3(7x-1)=4(1-0.2x)-6(5x+1),
去括號得:21x-3=4-0.8x-30x-6,
移項、合并同類項得:51.8x=1,
系數(shù)化為1得:x=
5 |
259 |
7x?1 |
0.024 |
1?0.2x |
0.018 |
5x+1 |
0.012 |
7x?1 |
0.024 |
1?0.2x |
0.018 |
5x+1 |
0.012 |
1 |
1000 |
7x?1 |
24 |
1?0.2x |
18 |
5x+1 |
12 |
5 |
259 |