Question

Ache o valor das incógnitas​

Answer 1

Resposta:

a) 8 / 2x + 4 = 5 / 5x - 2

40x - 16 = 10x + 20

40x - 10x = 20 + 16

30x = 36

x = 36 / 30

x = 1,2

b) 4 / x^2 + 5 = 10 / 15

2 / x^2 + 5 = 1 / 3

x^2 + 5 = 6

x^2 = 6 - 5

x^2 = 1

x = √1

x = 1