Răspuns :
a=2b
148+b+a=643.
b+a= 643-148
b+a= 495.
b+2b= 495
3b=495.
b= 495:3
b= 165.
a=2·165.
a=330.
148+b+a=643.
b+a= 643-148
b+a= 495.
b+2b= 495
3b=495.
b= 495:3
b= 165.
a=2·165.
a=330.