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Rezultatul din egalitatea: [(x+2020)•2020-2020]:2020=2021 este: 5, 7, 11 sau 2????????? ajutorrrrrrrr​

Răspuns :

Explicație pas cu pas:

[(x+2020)•2020-2020]:2020=2021

[(x+2020)•2020-2020]=2021×2020

[(x+2020)•2020-2020]=4082420

(X+2020)×2020=4082420+2020

(X+2020)×2020=4084440

x+2020=4084440:2020

x+2020=2022

x=2022-2020

x=2

Răspuns:

2

Explicație pas cu pas:

[(x+2020)•2020-2020]:2020=2021

(x+2020)•2020-2020= 2021x2020

(x+2020)•2020 = 2021x2020+2020

x+2020= (2021x2020+2020):2020

x+2020 =2022

x = 2