Question

[(58×a-80):25]×64=1280
Afla pe a

Answer 1

Răspuns:

[(58×a-80):25]×64=1280

[ ]=1280:64

[ ]=20

(58×a-80):25=20

( ):25=20

( )= 25×20

( )=500

58×a-80=500

58×a=500+80

58×a= 580

a=580:58

a=10

Sper ca te-am ajutat!

Answer 2

[(58×a-80):25]×64=1280
(58 x a -80) : 25 = 1280 : 64
(58 x a - 80) :25 = 20
58 x a - 80 = 20 x 25
58 x a - 80 = 500
58 x a = 500 + 80
58 x a = 580
a = 580 : 58
a = 10