问题
解答题
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答案
(1)X-40%X=6,
0.6X=6,
0.6X÷0.6=6÷0.6,
X=10;
(2)X+
X=11,5 6
X=11,11 6
X×11 6
=11×6 11
,6 11
X=6;
(3)75%X+25%=4,
0.75X+0.25-0.25=4-0.25,
0.75X÷0.75=3.75÷0.75,
X=5.
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(1)X-40%X=6,
0.6X=6,
0.6X÷0.6=6÷0.6,
X=10;
(2)X+
X=11,5 6
X=11,11 6
X×11 6
=11×6 11
,6 11
X=6;
(3)75%X+25%=4,
0.75X+0.25-0.25=4-0.25,
0.75X÷0.75=3.75÷0.75,
X=5.