问题
解答题
解方程.
x-
|
答案
(1)
+x=3 8 7 12
+x-3 8
=3 8
-7 12 3 8
x=5 24
(2)x-
=4 5 9 7
x-
+4 5
=4 5
+9 7 4 5
x=73 35
解方程.
x-
|
(1)
+x=3 8 7 12
+x-3 8
=3 8
-7 12 3 8
x=5 24
(2)x-
=4 5 9 7
x-
+4 5
=4 5
+9 7 4 5
x=73 35