3x+2=4x-1这道题怎么做

3x+2=4x-1这道题怎么做 (3/x+2)+1/x=4/x²+2x这道题怎么做 x-1/x-2-x-3/x-4=x-2/x-3-x-4/x-5怎么做? 4(X+1)-3=2(x-2)怎么做 X(X-4)=3X+1怎么做 4x-14=(x+2)*(x-3)怎么做 3[x-2(x-1)]=9x怎么做 1/（x+2)+1/(x+3)=1/(x+1)+1/(x+4)怎么做 (x-4)(x-3)-(x-2)(x-3)怎么做 (x-1)(x+2)(x+3)(x+6)怎么做? 3分之x-1=5分之x+2+x 怎么做? 怎么做? (2x+3)(-x-1)怎么做 (2x+3)(-x-1)怎么做 2(x-3)(-x+1)怎么做 1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做 2(3x-4)+(4-x)=4x这道题怎么做呢? 3-(x+2)=4怎么做 2[3x-4(x-1)]+2=3(x-2)怎么做