а)x ≠ 1

(3x * (x+1)-(x+1))/(x+1)=5

(x+1) * (3x-1)/(x+1)=5

3x-1 = 5

3x = 6

x =2

б) x ≠ 4

x ≠ -4

(x)/(x-4) - (2)/(x+4)-(32)/(x^2-16)=0

(x*(x+4) - 2(x-4)-32)/(x-4)(x+4) = 0

(x^2+2x-24)/((x-4)*(x+4)) = 0

((x+6)(x-4))/((x-4)(x+4))=0

(x+6)/(x+4) = 0

x = -6

в) (1)/(x(2-x))+(x+4)/(x(2+x))- (2)/((2-x)(2+x))=0

(2+x+2x8-x^2-4x-2x)/(x(-(x-2))(2+x))=0

(-x^2+2x-5x+10)/(x(-(x-2))(2+x))=0

(-x-2)(x+5)/(x(2+x))=0

x+5=0

x=-5