Question

Sabendo que 2/x+5 = 4, calcule o valor de 3/x+6​

Answer 1

Resposta:

2

Explicação:

2/x+5 = 4

2 = 4×(x+5)

2 = (4×x)+(4×5)

2 = 4x+20

2-20 = 4x

-18 = 4x

-18/4 = x

-9/2 = x

3/x+6 =

3 / -9/2+6 =

3 / -9/2+6/1 =

3 / -9/2+(2÷1×6)/2 =

3 / -9/2+12/2 =

3 / -9+12/2 =

3 / 3/2 =

3×2/3 =

3/1×2/3 =

3×2/1×3 =

6/3 =

2