Solve 0 = -5*u + 4*b - 25, 3*u - b = -28 + 20 for u.

-1

Solve -2*d = -2*n + 8, -4*n - 5*d - 63 = 2 for n.

-5

Solve 2*a + 4 = -q, -2*q + 3*q = -5*a - 4 for q.

-4

Solve -4*o - 5 = -43*w + 40*w, 4*o + 13 = -5*w for w.

-1

Solve -10*l + 8*l - 4 = 4*r, r - 5*l = -1 for r.

-1

Solve 5 = -3*s + 4*l, l + 7 = 2*s + 12 for s.

-3

Solve -g + 3*p + 2 = 9, -2*g + 2*p = 10 for g.

-4

Solve o = 5*f + 11, 49*f + 15 = -3*o + 48*f for o.

-4

Solve d + 3*f + 1 = 3*d, -5 = 2*d - f for d.

-4

Solve 0 = 3*m - b + 6*b, 2*m = 2*b + 16 for m.

5