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2+(x+2)=3(x-1) 2-x+2=3(x-1) 2-(x+2)=3(1-x) 2-(x+2)=3(x-1)
1﹣3(x﹣2)=4 1﹣3(x﹣2)=﹣4 ﹣1﹣3(2﹣x)=﹣4 1﹣3(2﹣x)=4
2+(x+2)=3(x-1) 2-x+2=3(x-1) 2-(x+2)=3(1-x) 2-(x+2)=3(x-1)
2+(x+2)=3(x﹣1) 2﹣x+2=3(x﹣1) 2﹣(x+2)=3(1﹣x) 2﹣(x+2)=3(x﹣1)
方程两边分式的最简公分母是x2-1 方程两边同乘(x2-1),得整式方程2(x-1)+3(x+1)=6 解这个整式方程得x=1 原方程的解为x=1
) x=1 ( ) x=2 ( ) x= 3 ( ) x=4
2+(x+2)=3(x-1) 2-x+2=3(x-1) 2-(x+2)=3 2-(x+2)=3(x-1)