Question

suma a+b+c+d=845.daca din fiecare s-ar scadea acelasi nr.am obtine numerele:12,127,376,298.Identifica nr.

Answer 1

845-(12+127+376+298)=813
845-813=32
32:4=8
a=8+12=20
b=8+127=135
c=8+376=384
d=8+298=306

Answer 2

a + b + c + d = 845
a - x = 12
b - x = 127
c - x = 376
d - x = 298
Adunam ultimele 4 relatii si obtinem:
a + b + c + d - 4x = 12 + 127 + 376 + 298 = 813
845 - 4x = 813
845 - 813 = 4x
32 = 4x
x = 32:4 = 8
a = 12 + 8 = 20
b = 127 + 8 = 135
c = 376 + 8 = 384
d = 298 + 8 = 306