Question

afla necunoscuta:
(y +540)×3-250×5=445​

Answer 1

Salutare!

(y+540)×3-250×5=445

(y+540)×3-1 250=445

(y+540)×3=445+1 250

(y+540)×3=1 695

(y+540)=1 695:3

y+540=565

y=565-540

y=25