Question

a×4+150=270 (a-20):6=50 9+8×a=89 (410-b):3=50 Dau coroana !!!​

Answer 1

Răspuns:

a=30

a=320

a=10

b=260

Explicație pas cu pas:

$4a+150=270\\4a=120\\a=120:4\\a=30\\\\(a-20):6=50\\a-20=300\\a=300+20\\a=320\\\\9+8a=89\\8a=80\\a=80:8\\a=10\\\\(410-b):3=50\\410-b=150\\b=410-150\\b=260$

Sper ca te-am ajutat! succes!