Question

X supra x+2 egal 5
Raspuns

Answer 1

$\frac{x}{x + 2} = 5 \\ x = 5 \times (x + 2) \\ x = 5x + 10 \\ x - 5x = 10 \\ - 4x = 10 \\ - x = \frac{10}{4} \\ x = - \frac{10}{4} = - 2.5$

Answer 2

x/(x + 2) = 5

x = 5(x + 2)

x = 5x + 10

5x - x = - 10

4x = - 10

x = -10/4

x = - 5/2