500=-x+180x-7200怎么解谢谢了,

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500=-x+180x-7200怎么解谢谢了,500=-x+180x-7200怎么解谢谢了,500=-x+180x-7200怎么解谢谢了,X+180X=181X=7200+500=7700X=7700

500=-x+180x-7200怎么解谢谢了,
500=-x+180x-7200怎么解谢谢了,

500=-x+180x-7200怎么解谢谢了,
X+180X=181X=7200+500=7700 X=7700|181