题目内容
| 解方程 2(x-3)=5.8 | 40-3x=28. |
(1)2(x-3)=5.8,
2(x-3)÷2=5.8÷2,
x-3+3=2.9+3,
x=5.9;
(2)40-3x=28,
40-3x+3x=28+3x,
40-28=28+3x-28,
12÷3=3x÷3,
x=4.
2(x-3)÷2=5.8÷2,
x-3+3=2.9+3,
x=5.9;
(2)40-3x=28,
40-3x+3x=28+3x,
40-28=28+3x-28,
12÷3=3x÷3,
x=4.
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