1/x-10+1/x-6=1/x-7+1/x-9

问题描述:

1/x-10+1/x-6=1/x-7+1/x-9

合并1/x得(1/x)x4一34����=��1/x+1/x+1/x+1/x��-��10+6+7+9��=��1/x����4-34