题目内容
解方程.
X+
X=
X-12%X=2.816.
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X-12%X=2.816.
(1)
x+
x=
,
x=
,
x×
=
×
,
x=
;
(2)x-12%x=2.816,
0.88x=2.816,
0.88x÷0.88=2.816÷0.88,
x=3.2
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x=
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(2)x-12%x=2.816,
0.88x=2.816,
0.88x÷0.88=2.816÷0.88,
x=3.2
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