4x-22=-(3x+8)
4x-22=-3x-8
4x+3x=22-8
7x=14
x=2
所以 X 的相反數(shù)是 -2
3x+8是4X-22的相反數(shù),求X的相反數(shù)
3x+8是4X-22的相反數(shù),求X的相反數(shù)
數(shù)學人氣：407 ℃時間：2020-05-25 05:33:23
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