Solve -2*f = -5*d + 25, d - 40*f - 5 = -35*f for d.

5

Solve -6 = -k + 2*s, -4*k + 13 = -259*s + 262*s for k.

4

Solve 25 = -72*l + 77*l - 5*k, 2*l - 1 = -k for l.

2

Solve 5*r - u + 1 = 0, 5*u = r + 8*u - 3 for r.

0

Solve 0 = 2*u + 4*k - 4, -14*u = -18*u - 3*k - 7 for u.

-4

Solve 4*c - 56*w = -61*w + 33, -3*w = -5*c - 5 for c.

2

Solve 3*f + 5*m = 14, 118 = -2*f + 3*m + 121 for f.

3

Solve -3 = 4*v + 13, 8 = -f - 2*v for f.

0

Solve -16 = 4*a - 2*k, -5*a + k + 6 = 20 for a.

-2

Solve j + 2 - 4 = l, 2*l + 2*j - 12 = 0 for l.

2