问题
解答题
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答案
(1)x:6=
,2 5
5x=6×2,
5x÷5=12÷5,
x=2.4;
(2)3.6x=1.8×3,
3.6x=5.4,
3.6x÷3.6=5.4÷3.6,
x=1.5;
(3)276×4=368x,
1104=368x,
1104÷368=368x÷368,
x=3;
(4)
=8 21
,0.4 x
8x=21×0.4,
8x÷8=8.4÷8,
x=1.05.
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(1)x:6=
,2 5
5x=6×2,
5x÷5=12÷5,
x=2.4;
(2)3.6x=1.8×3,
3.6x=5.4,
3.6x÷3.6=5.4÷3.6,
x=1.5;
(3)276×4=368x,
1104=368x,
1104÷368=368x÷368,
x=3;
(4)
=8 21
,0.4 x
8x=21×0.4,
8x÷8=8.4÷8,
x=1.05.