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A+b=960 a=2xb a,b=? Va rog repede

Răspuns :

2*b+b=960
3*b=960
b=320
a=640

Algebric :

a + b = 960

a = 2 x b

2 x b + b = 960

3 x b = 960

b = 960 : 3

b = 320

a = 2 x 320

a = 640

Verific: 640 + 320 = 960 → suma