问题
解答题
解方程(比例) 4x+3×0.7=6.5
|
答案
(1)4x+3×0.7=6.5
4x+2.1-2.1=6.5-2.1
4x÷4=4.4÷4
x=1.1;
(2)
:x=3:123 4
3x=
×123 4
3x÷3=9÷3
x=3..
解方程(比例) 4x+3×0.7=6.5
|
(1)4x+3×0.7=6.5
4x+2.1-2.1=6.5-2.1
4x÷4=4.4÷4
x=1.1;
(2)
:x=3:123 4
3x=
×123 4
3x÷3=9÷3
x=3..