Question

1500-[820-(125×a-150):80]=700 va rog putin ajutor

Answer 1

820-(125xa-150):80=1500-700
820-(125xa-150):80=800
(125xa-150):80=820-800
(125xa-150):80=20
125xa-150=20x80
125xa-150=1600
125xa=1600+150
125xa=1750
a=1750:125
a=14

verificare
1500-[820-(125x14-150):80]=700
1500-[820-1600:80]=700
1500-(820-20)=700
1500-800=700