急求高手解递等式!!!

2024-11-16 05:28:51
推荐回答(1个)
回答(1):

1, 2
2, 31.49
3, 3100.7
4, 0.86
5, 4.3
6, 19
7, 169
8, 60
9 , 0.75
10, 6.012

1)5.4÷【2.6×0.8+0.62】=5.4÷2.7=2
2)5.8×(3-0.15)+4×3.74=16.53+14.96=31.49
3)307×10.1=307×10+307×0.1=3100.7
4)0.86×15.7-0.86×14.7=0.86×1=0.86
5)0.8×(4.3×1.25)银清=0.8×1.25×4.3=4.3×1=4.3
6)(23+x+18)÷2=30 23+x+18=60 x=19
7)x÷13+7=20 x=13×13=169
8)5(x-12)锋稿前敬轮÷2=2x 5x-60=4x x=60
9)4.75×2.4-8x=5.4 8x=11.4-5.4 8x=6 x=0.75
10)49(x-6)÷0.5=1.2 49约等于50 x=6.012 不约等于得x=6.012244897