问题
解答题
解方程.
|
答案
(1)3x=1 2
3x÷3=
÷31 2
x=
;1 6
(2)
x=51 4
x÷1 4
=5÷1 4 1 4
x=20;
(3)
x=4 5 3 10
x÷4 5
=4 5
÷3 10 4 5
x=
;3 8
(4)
+x=3 4 8 9
+x-3 4
=3 4
-8 9 3 4
x=
;5 36
(5)x÷
=14 15 1 7
x÷
×14 15
=14 15
×1 7 14 15
x=
;2 15
(6)
x=3 10 4 5
x÷3 10
=3 10
÷4 5 3 10
x=2
.2 3