题目内容
| 解方程. 7x+10x=102 | 0.26×(x-5)=0.91. |
(1)7x+10x=102,
17x=102,
17x÷17=102÷17,
x=6;
(2)0.26×(x-5)=0.91,
0.26×(x-5)÷0.26=0.91÷0.26,
x-5=3.5,
x-5+5=3.5+5,
x=8.5.
17x=102,
17x÷17=102÷17,
x=6;
(2)0.26×(x-5)=0.91,
0.26×(x-5)÷0.26=0.91÷0.26,
x-5=3.5,
x-5+5=3.5+5,
x=8.5.
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