Question

află numărul necunoscut 2×16×(c-250)-1400=12200

Answer 1

2 x 16 x ( c-250) - 1400=12200

2 x 16 x ( c-250) =12200+1400

2 x 16 x ( c-250)=13600

32 x ( c-250)=13600

( c-250)=13600: 32

( c-250) =425

c=425+250

c=675

Answer 2

2×16×(c-250)-1400 = 12200/+1400
2×16×(c-250) = 13600/: 2
16×(c-250)= 6800
c-250 = 425
c=425 + 250
c=675


Succes!