题目内容
解方程.
X-12.75=22.25
X+0.89=29.62.
X-12.75=22.25
X+0.89=29.62.
(1)X-12.75=22.25,
X-12.75+12.75=22.25+12.75,
X=35;
(2)X+0.89=29.62,
X+0.89-0.89=29.62-0.89,
X=28.73.
X-12.75+12.75=22.25+12.75,
X=35;
(2)X+0.89=29.62,
X+0.89-0.89=29.62-0.89,
X=28.73.
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