问题
解答题
|
答案
(1)
x+2 3
x=42,1 2
(
+2 3
)x=42,1 2
x=42,7 6
x×7 6
=42×6 7
,6 7
x=36;
(2)
=x 10
,0.8 4.5
4.5x=8,
4.5x÷4.5=8÷4.5,
x=
.16 9
|
(1)
x+2 3
x=42,1 2
(
+2 3
)x=42,1 2
x=42,7 6
x×7 6
=42×6 7
,6 7
x=36;
(2)
=x 10
,0.8 4.5
4.5x=8,
4.5x÷4.5=8÷4.5,
x=
.16 9