Question

Função afim
a) x/3 =3/2

b) 4x/5 = ×+1/3

c) 2-x / x+5 = 3/4

d) x-1/x-2 = 3/2

Answer 1

Olá John

a)

x/3 = 3/2

2x = 9

x = 9/2 

b)

4x/5 = (x + 1)/3

12x = 5x + 5 

12x - 5x = 5

7x = 5

x = 5/7 

c)

(2 - x)/(x + 5) = 3/4

4*(2 - x) = 3*(x + 5)

8 - 4x = 3x + 15

3x + 4x = 8 - 15

7x = -7

x = -1

d)

(x - 1)/(x - 2) = 3/2

2*(x - 1) = 3*(x - 2)

2x - 2 = 3x - 6

3x - 2x = 6 - 2

x = 4 

.