Question

Qual o valor real de x em:

a) x/3 = 3/2

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

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

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

Answer 1

Ola tamires

a)

x/3 = 3/2
2x = 9
x = 9/2

b)

4x/5 = (x + 1)/3
12x = 5x + 5
7x = 5
x = 5/7

c)

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

8 - 4x = 3x + 15
3x + 4x = 8 - 15
7x = -7
x = -1

d)
(x - 1)/(x - 2) = 3/2
(2x - 2 = 3x - 6
3x - 2x = -2 + 6
x = 4

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