问题
解答题
解方程.
X-12.75=22.25
X+0.89=29.62.
答案
(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.
解方程.
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.