Răspuns :
3a-b=140
a-b=30=>a=b+30
3(b+30)-b=140
3b+90-b=140
2b=140-90=50 b=25
a=55
a-b=30=>a=b+30
3(b+30)-b=140
3b+90-b=140
2b=140-90=50 b=25
a=55
3 A - B = 140
A - B = 30 = > A = B + 30
3 ( B +30 ) - B = 140
3 B +90 - B = 140
2 B = 140 - 90 = 50 B = 25
A = 55
Sper ca te - am ajutat !!!
A - B = 30 = > A = B + 30
3 ( B +30 ) - B = 140
3 B +90 - B = 140
2 B = 140 - 90 = 50 B = 25
A = 55
Sper ca te - am ajutat !!!