Răspuns:
Doar la subpunctul a) si b) îmi dau seama ce ai scris
[tex]\bf a)~ ~a + 3~150 = 7~405[/tex]
[tex]\bf a = 7~405 - 3~150[/tex]
[tex]\bf \green{\underline{a = 4~255}}[/tex]
[tex]\bf b)~~ b-3~512=2~140[/tex]
[tex]\bf b=2~140+3~512[/tex]
[tex]\bf \blue{\underline{b=5~652}}[/tex]
[tex]==pav38==[/tex]
