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解方程7.5χ=22.538x-316x=38.

题目详情
解方程
7.5χ=22.5
3
8
x-
3
16
x=
3
8
解方程
7.5χ=22.5
3
8
x-
3
16
x=
3
8
解方程
7.5χ=22.5
3
8
x-
3
16
x=
3
8
解方程
7.5χ=22.5
3
8
x-
3
16
x=
3
8
解方程
7.5χ=22.5
3
8
x-
3
16
x=
3
8


3
8
x-
3
16
x=
3
8
3
8
3 8 3 3 8 8
3
16
x=
3
8
3
16
3 16 3 3 16 16
3
8
3
8
3 8 3 3 8 8
▼优质解答
答案和解析
(1)7.5x=22.5,
7.5x÷7.5=22.5÷7.5,
x=3;

(2)
3
8
x-
3
16
x=
3
8

3
16
x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
(1)7.5x=22.5,
7.5x÷7.5=22.5÷7.5,
x=3;

(2)
3
8
x-
3
16
x=
3
8

3
16
x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
(1)7.5x=22.5,
7.5x÷7.5=22.5÷7.5,
x=3;

(2)
3
8
x-
3
16
x=
3
8

3
16
x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
(1)7.5x=22.5,
7.5x÷7.5=22.5÷7.5,
x=3;

(2)
3
8
x-
3
16
x=
3
8

3
16
x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
(1)7.5x=22.5,
7.5x÷7.5=22.5÷7.5,
x=3;

(2)
3
8
x-
3
16
x=
3
8

3
16
x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
3
8
3 8 3 3 3 8 8 8 x-
3
16
x=
3
8

3
16
x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
3
16
3 16 3 3 3 16 16 16 x=
3
8

3
16
x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
3
8
3 8 3 3 3 8 8 8 ,
3
16
x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
3
16
3 16 3 3 3 16 16 16 x=
3
8

3
16
16
3
=
3
8
×
16
3

x=2.
3
8
3 8 3 3 3 8 8 8 ,
3
16
16
3
=
3
8
×
16
3

x=2.
3
16
3 16 3 3 3 16 16 16 x×
16
3
=
3
8
×
16
3

x=2.
16
3
16 3 16 16 16 3 3 3 =
3
8
×
16
3

x=2.
3
8
3 8 3 3 3 8 8 8 ×
16
3

x=2.
16
3
16 3 16 16 16 3 3 3 ,
x=2.