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191问答库 > 3x+10=4x-20这道题目方程怎么解详细点儿，行不行

3x+10=4x-20这道题目方程怎么解详细点儿，行不行

2025-03-16 23:59:10

推荐回答（5个）

回答1：

3x+10=4x-20
两边同时加20-3x得
3x+10+20-3x=4x-20+20-3x
30=x

回答2：

3x+10=4x-20 10+20=4x-3x x=30

回答3：

解：4x-3x=10+20
x=30

回答4：

3x右移，20左移得：
10+20=4x-3x
x=30

回答5：

3x+10=4x-20
可知1X相差30
所以x=30

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