Question

ma={a+b+c]:3=427 a=b+21 b=3c a,b,c=? Repde dau 11 puncte si o coroana!!!!!!!!!!!!!!!

Answer 1

(a + b + c):3 = 427
a + b + c = 427 x 3 = 1281
(b + 21) + b + b/3 = 1281
2b + 21 + b/3 = 1281
7b/3 = 1281 - 21 = 1260
7b = 1260 x 3 = 3780
b = 3780 : 7 = 540
a = 540 + 21 = 561
c = 540/3 = 180