Răspuns :
Răspuns:
a-b=45
a:b=5 rest 5=>a=5b+5
5b+5-b=45
4b=45-5
b=40:4=>b=10
a=5·10+5=>a=55
a - b = 45
a : b = 5 rest 5
a = 5 × b + 5
5 × b + 5 - b = 45
4 × b + 5 = 45
4 × b = 45 - 5
4 × b = 40
b = 40 : 4
b = 10
a = 5 × 10 + 5
a = 50 + 5
a = 55
Răspuns:
a-b=45
a:b=5 rest 5=>a=5b+5
5b+5-b=45
4b=45-5
b=40:4=>b=10
a=5·10+5=>a=55
a - b = 45
a : b = 5 rest 5
a = 5 × b + 5
5 × b + 5 - b = 45
4 × b + 5 = 45
4 × b = 45 - 5
4 × b = 40
b = 40 : 4
b = 10
a = 5 × 10 + 5
a = 50 + 5
a = 55