Question

-a+b-c+d=0 -2a+b+c-3 d=0 a+2b-3c+d=0 a=? b=? c=? d=? ​

Answer 1

-a+b-c+d=0

-2a+b+c-3d=0

a+2b-3c+d=0

Real solution=b = (7 a)/3, c = (13 a)/6, d = (5 a)/6

Solution=a = 6 n, b = 14 n, c = 13 n, d = 5 n, n element Z