Răspuns :
3x+3x+3+3x+6+3x+9+3x+12=780
15x=750
x=750/15=80
Multiplii sunt:
240,243,246,249,252
P.S: aceasta ''/'' inseamna supra adica linia de fractie.
Succes :* :)
15x=750
x=750/15=80
Multiplii sunt:
240,243,246,249,252
P.S: aceasta ''/'' inseamna supra adica linia de fractie.
Succes :* :)