(10+2)(x-3)=10x
10x-30+2x-6=10x
12x-36=10x
12x-10x=36
2x=36
x=18
給分啊
(10+2)(x-3)=10x怎么算
(10+2)(x-3)=10x怎么算
數(shù)學人氣：429 ℃時間：2020-05-27 20:15:00
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