问题
解答题
|
答案
(1)5x=20 17
5x÷5=
÷520 17
x=
;4 17
(2)x-
x=3 8 5 16
x=5 8 5 16
x÷5 8
=5 8
÷5 16 5 8
x=
;1 2
(3)x÷
=8 7 7 16
x÷
×8 7
=8 7
×7 16 8 7
x=
.1 2
|
(1)5x=20 17
5x÷5=
÷520 17
x=
;4 17
(2)x-
x=3 8 5 16
x=5 8 5 16
x÷5 8
=5 8
÷5 16 5 8
x=
;1 2
(3)x÷
=8 7 7 16
x÷
×8 7
=8 7
×7 16 8 7
x=
.1 2