var('a b c d p q r s')
f1 = 14a - 102b + 104c + 24d
f2 = -7a + 51b - 52c - 12d
f3 = -52a - 12b - 142c - 138d
f4 =26a + 6b + 71c + 69d
f5= 28a - 204b + 208c + 48d
f6= -14a + 102b - 104c - 24d
f7 =-104a - 24b - 284c - 276d
f8= 52a + 12b + 142c + 138d
f9= 204a - 292b - 48c + 176d
f10= -102a + 146b + 24c - 88d
f11= 24a - 88b + 276c - 556d
f12= -12a + 44b - 138c + 278d
f13= 408a - 584b - 96c + 352d
f14= -204a + 292b + 48c - 176d
f15= 48a - 176b + 552c - 1112d
f16= -24a + 88b - 276c + 556d
solve([f1==0,f2==0,f3==0,f4==0, f5==0, f6==0,f7==0,f8==0, f9==0, f10==0, f11==0, f12==0, f13==0, f14==0, f15==0, f16==0],a, b ,c, d)
I am trying to solve these 16 system of equations but not getting any result. Please help regarding this