解方程. (1)x:6=2/5 (2)3.6x=1.8×3 (3)276×4=368x (4)8/21=0.4x.
问题描述:
解方程. (1)x:6=
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(2)3.6x=1.8×3 | ||||
(3)276×4=368x | (4)
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答
(1)x:6=25, 5x=6×2, 5x÷5=12÷5, ...
解方程. (1)x:6=
|
(2)3.6x=1.8×3 | ||||
(3)276×4=368x | (4)
|
(1)x:6=25, 5x=6×2, 5x÷5=12÷5, ...