题目内容
从下面每小题右边括号中选出该方程的解.
(1)9.9-x=0.1 (x=8.9,x=9.8)
(2)x+17=42 (x=59,x=25)
(1)x-1.8=0.9 (x=2.7,x=0.9)
(2)5.6-x=2.5 (x=8.1,x=3.1)
(1)1÷x=8 (x=0.125,x=8)
(2)7x=0.42 (x=2.94,x=0.06)