5*a=6.5
-8*a+7*b=-24.1
-2*a-3*b=-14.1
-5*a+4*b-2*c=57.1
-2*a+7*b+2*c=58.5
4*a-2*b+5*c=-37.2
-2*a-7*b+7*c+2*d=58.2
-5*a-4*b-8*c-5*d=-15.6
7*a+8*b-9*c+3*d=-110.5
-9*a+9*b-4*c-3*d=-8.5
6*a+2*b-8*c-7*d+8*e=105.3
5*a-7*b-4*c-9*d+4*e=53.8
-7*a+2*b-8*c-2*d-3*e=49.2
-5*a-4*b-4*c-9*d-6*e=33.4
9*a-7*b-7*c+3*d+5*e=-47
