Question

Aflați "X" din egalitățile :

a)2x + (63-45)•2+77•6=4736:74+980

b)x:(24:3)+3•(216-89)=42•3+51•10=?

Answer 1

a)2x + (63-45)•2+77•6=4736:74+980
2x + 18•2+462=64+980
2x + 36+462=1044
2x + 498=1044
2x =1044-498
2x=546
x=273

b)x:(24:3)+3•(216-89)=42•3+51•10
x:8+3•127=126+510
x:8+381=636
x:8=636-381
x:8=255
x=255•8
x=2040