问题
解答题
解方程:
X-0.8X-6=16 18:X=6:0.3. |
答案
(1)
x+2 3
x=42,1 2
x÷7 6
=42÷7 6
,7 6
x=36;
(2)x-0.8x-6=16,
0.2x-6+6=16+6,
0.2x÷0.2=22÷0.2,
x=110;
(3)18:x=6:0.3,
6x=18×0.3,
6x÷6=5.4÷6,
x=0.9.
解方程:
X-0.8X-6=16 18:X=6:0.3. |
(1)
x+2 3
x=42,1 2
x÷7 6
=42÷7 6
,7 6
x=36;
(2)x-0.8x-6=16,
0.2x-6+6=16+6,
0.2x÷0.2=22÷0.2,
x=110;
(3)18:x=6:0.3,
6x=18×0.3,
6x÷6=5.4÷6,
x=0.9.