Solve u + 4*s + 21 = 0, 5*u - 4*s - 4 = 11 for u.

-1

Solve q + b + 9 = 0, 1 = -4*q + 3*b - 7 for q.

-5

Solve 4*m + 13 = 5*n, 2*m + 5 = 5*n - 4 for m.

-2

Solve 0 = -4*q + l, q + 3*q + 8 = -l for q.

-1

Solve b + 9 = 2*l, b + 0*b - 15 = -4*l for l.

4

Solve p - 4 = -3*y, -68*y + 70*y + 4*p + 24 = 0 for y.

4

Solve -20*f + 22*f - n = -8, 5*n + 30 = -4*f for f.

-5

Solve -13*r - m + 6 = -8*r, r + 14 = -4*m for r.

2

Solve -o - 6 = -m - 16, 0 = 2*o - 8 for m.

-6

Solve 7*r + 17 = 3*r - 3*j, 0 = -r + 2*j + 4 for r.

-2