解x-(x-1)/3+ 7-(x+3)/5 =0
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解x-(x-1)/3+7-(x+3)/5=0解x-(x-1)/3+7-(x+3)/5=0解x-(x-1)/3+7-(x+3)/5=0去分母 同乘以15得&
解x-(x-1)/3+ 7-(x+3)/5 =0
解x-(x-1)/3+ 7-(x+3)/5 =0
解x-(x-1)/3+ 7-(x+3)/5 =0
去分母 同乘以15得
15x-5x+5+105-3x-9=0
101x-3=0 x= 你会做了吧