Question

quanto e : x/2 + 1/5 = 10

Answer 1

Olá,

x/2 + 1/5 = 10

faça 10 = 20/2

x/2 + 1/5 = 20/2

tire o MMC de 2 e 5 = 2 · 5 = 10

(x · 5 + 1 · 2)/10 = (20 · 5)/10

elimina o denominador 10..

5x+2 = 100
5x = 100-2
5x = 98

x=98/5