Question

14x+7x=9
con comprobación
plis ​

Answer 1

14x + 7x = 9

21x = 9

x = 9/21

x = 3/7

Comprobación

$14x + 7x = 9\\\\14(\frac{3}{7}) + 7(\frac{3}{7}) = 9\\\\2(3) + 3 = 9\\\\6 + 3 = 9\\\\9 = 9$

Eternamente axllxa