问题
解答题
1
2x+3×0.9=24.7. |
答案
(1)1
:x=0.4:8,1 4
0.4x=1
×8,1 4
0.4x÷0.4=10÷0.4,
x=25;
(2)2x+3×0.9=24.7,
2x+2.7-2.7=24.7-2.7,
2x÷2=22÷2,
x=11.
1
2x+3×0.9=24.7. |
(1)1
:x=0.4:8,1 4
0.4x=1
×8,1 4
0.4x÷0.4=10÷0.4,
x=25;
(2)2x+3×0.9=24.7,
2x+2.7-2.7=24.7-2.7,
2x÷2=22÷2,
x=11.