rozwiąż:
3-(2/x+1)=-4
3-(2/x +1) = -4
Z. x=I=0
3 -(2/x +1) = -4 I*x
3x -x(2/x +1) = -4x
3x -(2+x) = -4x
3x -2 -x = -4x
2x + 4x = 2
6x =2/:6
x =1/3
=======
Jeżeli w mianowniku ułamka jest: x+1,(nieprecyzyjny zapis tematu),to:
3-2/(x+1) =-4
Z. x+1 =I= 0 ----> x =I= -1
3-2(x+1) =-4 I*(x+1)
3(x+1) -2 =-4(x+1)
3x +3 -2 =-4x-4
3x+4x =-4 -1
7x =-5/:7
x =-5/7
========
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3-(2/x +1) = -4
Z. x=I=0
3 -(2/x +1) = -4 I*x
3x -x(2/x +1) = -4x
3x -(2+x) = -4x
3x -2 -x = -4x
2x + 4x = 2
6x =2/:6
x =1/3
=======
Jeżeli w mianowniku ułamka jest: x+1,(nieprecyzyjny zapis tematu),to:
3-2/(x+1) =-4
Z. x+1 =I= 0 ----> x =I= -1
3-2(x+1) =-4 I*(x+1)
3(x+1) -2 =-4(x+1)
3x +3 -2 =-4x-4
3x+4x =-4 -1
7x =-5/:7
x =-5/7
========