Question

Aflati valoarea lui a:
[a+(14:7)x8]x9-[15:5x2+(147:3)]x5=103
Ofer 64 de puncte si multumiri!
Va rog!

Answer 1

[tex][a+(14:7)*8]*9-[15:5*2+(147:3)]*5=103 \\ (a+2*8)*9-(3*2+49)*5=103 \\ 9(a+16)-55*5=103 \\ 9(a+16)=103+275=378 \\ a+16=42 \\ a=42-16 \\ a=26[/tex]

Answer 2

[a+(14/7)*8]*9-[15/5*2+(147/3)]*5=103
[a+2*8]*9-[3*2+49]*5=103
[a+16]*9-[6+49]*5=103
[a+16]*9-55*5=103
[a+16]*9-275=103
[a+16]*9=103+275
[a+16]*9=378
a+16=378/9
a+16=42
a=42-16\
a=26

succes