Răspuns :
2a = 3b
250 : 5 = 50 o parte din suma
a = 50 * 2
a = 100
b = 50 * 3
b = 150
250 : 5 = 50 o parte din suma
a = 50 * 2
a = 100
b = 50 * 3
b = 150
2a=3b
a si b cele 2 nr
a+b=250
a=250-b
2x(250-b)=3b
500-2b=3b
5b=500
b=500/5
b=100
a+b=250
a+100=250
a=250-100
a=150
verificare
2x150=3x100
300=300
a si b cele 2 nr
a+b=250
a=250-b
2x(250-b)=3b
500-2b=3b
5b=500
b=500/5
b=100
a+b=250
a+100=250
a=250-100
a=150
verificare
2x150=3x100
300=300