(2x+19)/(5x²-5)-17/(x²-1)-3/(1-x)=0计算
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(2x+19)/(5x²-5)-17/(x²-1)-3/(1-x)=0计算
(2x+19)/(5x²-5)-17/(x²-1)-3/(1-x)=0计算
(2x+19)/(5x²-5)-17/(x²-1)-3/(1-x)=0计算
原方程两边同乘以5(x²-1)可得:
2x+19 - 17*5+ 3*5(x+1)=0
2x+19-85 +15x+15=0
17x=51
解得:x=3