Question

$\frac{20}{x-2}= \frac{5}{4}$

Answer 1

Oie, Td Bom?!

20/[x - 2] = 5/4

20 . 4 = 5(x - 2)

80 = 5(x - 2)

80/5 = x - 2

16 = x - 2

- x = - 2 - 16

- x = - 18 . (- 1)

x = 18

Att. Makaveli1996