题目内容
解方程.
75%X+24=57
X-
=
.
75%X+24=57
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(1)75%X+24=57,
0.75X+24-24=57-24,
0.75X÷0.75=33÷0.75,
X=44;
(2)
X-
=
,
X-
+
=
+
,
X×
=
×
,
X=1
.
0.75X+24-24=57-24,
0.75X÷0.75=33÷0.75,
X=44;
(2)
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| 2 |
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| 1 |
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| 2 |
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| 1 |
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X=1
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| 24 |
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