Question

Resolva as seguintes equações fracionarias (A)(3/x + 2/5 =3/4 (B)(1/3 + 2/x+1=1/6

Answer 1

Vamos la

a)  3/x + 2/5 = 3/4

3/x = 15/20 - 8/20 = 7/20

x/3 = 20/7

x = 60/7

b)

1/3 + 2/(x + 1) = 1/6

2/6 + 12/(6*(x + 1) = 1/6

2 + 12/(x + 1) = 1

12/(x + 1) = -1

(x + 1)/12 = -1

x + 1 = -12

x = -13

Answer 2

a)

3/x + 2/5 = 3/4

3/x = 15/20 - 8/20 = 7/20

x/3 = 20/7

x = 60/7

b)

1/3 + 2/(x + 1) = 1/6

2/6 + 12/(6*(x + 1) = 1/6

2 + 12/(x + 1) = 1

12/(x + 1) = -1

(x + 1)/12 = -1

x + 1 = -12

x = -13