题目内容
解方程.
| 0.7x=0.91 | x-5.2=1.08 | x÷12=150 | 6.27+x=9. |
(1)0.7x=0.91,
0.7x÷0.7=0.91÷0.7,
x=1.3;
(2)x-5.2=1.08,
x-5.2+5.2=1.08+5.2,
x=6.28;
(3)x÷12=150,
x÷12×12=150×12,
x=1800;
(4)6.27+x=9,
6.27+x-6.27=9-6.27,
x=2.73.
0.7x÷0.7=0.91÷0.7,
x=1.3;
(2)x-5.2=1.08,
x-5.2+5.2=1.08+5.2,
x=6.28;
(3)x÷12=150,
x÷12×12=150×12,
x=1800;
(4)6.27+x=9,
6.27+x-6.27=9-6.27,
x=2.73.
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