Question

Resolva as equações fracionaria abaixo
a) 4/x-1 = 3/x 2
b) 5/x-3 = 3/5-x
c)2/x-3 - 1/4 = 5/x-3 - 1/3

Answer 1

4/x-1=3/x2
3x-3=8x
5x=-3
x=-0,6

b)3x-9=25-5x
8x=34
x=4,25

c)7/x-3=(+3-4)/12
7=-x+3/12
x=-81

Answer 2

a) 4/x-1 = 3/x+2

4(x+2) = 3(x-1)
4x + 8 = 3x - 3
4x - 3x = -3 -8
x = -11


b) 5/x-3 = 3/5-x

5(5-x) = 3(x-3)
25 - 5x = 3x -9
-5x - 3x = -9-25
-8x = -34 (-1)
8x = 34
x = 34/8
x = 4,25

c) 2/x-3 - 1/4 = 5/x -3 - 1/3
2/x-3 -5/x-3 = 1/4 - 1/3
-3/x-3= 3-4/12 = -1/12

-3/x-3=-1/12

-3(12) = x-3
-36 = x -3
x - 3 = 36
x = 36 + 3
x = 39