问题
解答题
|
答案
(1)x÷
=3 4 4 5
x÷
×3 4
=3 4
×4 5 3 4
x=3 5
(2)x-
x=35 8
x=33 8
x×3 8
=3×8 3 8 3
x=8
(3)6x-3.5x=
÷1 5 4 15
2.5x=
×1 5 15 4
2.5x=0.75
2.5x÷2.5=0.75÷2.5
x=0.3
|
(1)x÷
=3 4 4 5
x÷
×3 4
=3 4
×4 5 3 4
x=3 5
(2)x-
x=35 8
x=33 8
x×3 8
=3×8 3 8 3
x=8
(3)6x-3.5x=
÷1 5 4 15
2.5x=
×1 5 15 4
2.5x=0.75
2.5x÷2.5=0.75÷2.5
x=0.3