问题
解答题
求未知数x. (1)
(2)2x+1.5×4=6. |
答案
(1)
:x=3:12,3 4
3x=12×
,3 4
x=
,12×0.75 3
x=3;
(2)2x+1.5×4=6,
2x+6=6,
2x=6-6,
2x=0,
x=0.
求未知数x. (1)
(2)2x+1.5×4=6. |
(1)
:x=3:12,3 4
3x=12×
,3 4
x=
,12×0.75 3
x=3;
(2)2x+1.5×4=6,
2x+6=6,
2x=6-6,
2x=0,
x=0.