解设这个数是x
2x-(-5)=3x+2
2x+5=3x+2
x=3
一个数的2倍与-5的差比这个数的3倍多2,列出的方程是
一个数的2倍与-5的差比这个数的3倍多2,列出的方程是
数学人气:564 ℃时间:2019-10-19 15:32:32
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