Solve 5*f + 3*v = 35, 2*f + 3*f + 4*v - 40 = 0 for f.

4

Solve 0 = -4*q, 21 = -7*b + 12*q - 17*q for b.

-3

Solve -58 = 5*v - 5*n - 13, 0 = -4*v + 3*n - 31 for v.

-4

Solve 15 = -3*s - 3*f, -2*s + 5 = 5*f + 18 for s.

-4

Solve -2*n = -0*s + s + 6, 5*s + n = -12 for s.

-2

Solve -21 = -2*k - 4*g - 7, -23 = -4*k - 3*g for k.

5

Solve 2*w - 2*b + 12 = 0, -4*w + 5*b - 16 = 9 for w.

-5

Solve -2*x + 4*y - 18 = 0, -x + 0*y - 4*y = -3 for x.

-5

Solve -3*x + 7*q - 8*q - 7 = 0, -2*q + 16 = -4*x for x.

-3

Solve 4*v - 4*n - 40 = 0, 5*v - 47 = 4*n - 1 for v.

6