问题
解答题
解方程
4x-16=21.68. |
答案
(1)
:3 4
=x:9 10
,3 5
x=9 10
×3 4
,3 5
x÷9 10
=9 10
÷9 20
,9 10
x=
;1 2
(2)4x-16=21.68,
4x-16+16=21.68+16,
4x=37.68,
4x÷4=37.68÷4,
x=9.42.
解方程
4x-16=21.68. |
(1)
:3 4
=x:9 10
,3 5
x=9 10
×3 4
,3 5
x÷9 10
=9 10
÷9 20
,9 10
x=
;1 2
(2)4x-16=21.68,
4x-16+16=21.68+16,
4x=37.68,
4x÷4=37.68÷4,
x=9.42.