优质解答
x+5.8=14.2
x=14.2-5.8
x=8.6
24+x=39(检验)
x=39-24
x=15
x-40=52
x=52+40
x=92
6x=3.6(检验)
x=0.6
x÷3.2=4
x=12.8
3.2÷x=4
x=0.8
15+15+15+x=70
x=70-45
x=25
2x+5=95
2x=95-5
2x=90
x=45
4.5*3=x
x=13.5
3960-x=2880
x=3960-2880
x=1080
x+5.8=14.2
x=14.2-5.8
x=8.6
24+x=39(检验)
x=39-24
x=15
x-40=52
x=52+40
x=92
6x=3.6(检验)
x=0.6
x÷3.2=4
x=12.8
3.2÷x=4
x=0.8
15+15+15+x=70
x=70-45
x=25
2x+5=95
2x=95-5
2x=90
x=45
4.5*3=x
x=13.5
3960-x=2880
x=3960-2880
x=1080