解方程(3x-2)×7-2(x-3)=16x+4 还有7×（2x-3）=4x+9
各位少爷少奶奶老爷贵妇们，
明天要交啊！
人气：216 ℃ 时间：2020-03-27 22:34:47
解答
(3x-2)×7-2(x-3)=16x+4
21x-14-2x+6=16x+4
21x-2x-16x=4+14-6
3x=12
∴x=4
7×（2x-3）=4x+9
14x-21=4x+9
10x=30
x=3
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