解方程:(1)x+23?x?12=1?x5(2)x0.5?0.23?0.2x0.03=1.

解方程:(1)x+23?x?12=1?x5(2)x0.5?0.23?0.2x0.03=1.
2024-11-09 00:54:57
推荐回答(1个)
回答(1):

(1)去分母得:10x+20-15x+15=30-6x,
移项、合并得:x=-5;
(2)将小数化为整数得:2x-

23?20x
3
=1,
去分母得:6x-23+20x=3,
移项、合并得:26x=26,
化系数为1得:x=1.