问题
解答题
求未知数.
|
答案
(1)x+1.3=2.63,
x+1.3-1.3=2.63-1.3,
x=1.33;
(2)6.2x-x=41.6,
5.2x=41.6,
5.2x÷5.2=41.6÷5.2,
x=8;
(3)10.5+3x=16.2,
10.5+3x-10.5=16.2-10.5,
3x÷3=5.7÷3,
x=1.9.
求未知数.
|
(1)x+1.3=2.63,
x+1.3-1.3=2.63-1.3,
x=1.33;
(2)6.2x-x=41.6,
5.2x=41.6,
5.2x÷5.2=41.6÷5.2,
x=8;
(3)10.5+3x=16.2,
10.5+3x-10.5=16.2-10.5,
3x÷3=5.7÷3,
x=1.9.