Solve 0 = b - 5*y - 12, 2*b - 3*y = -b for b.

-3

Solve -2*u = 2*x + 4 + 4, 5*u = -3*x - 10 for u.

1

Solve 0 = 3*t - 4*h + 28, -68*t = -67*t + h for t.

-4

Solve 5*l - 10 = -m - m, 4*l - 36 = 4*m for l.

4

Solve v + 2*z = 3*v + 2, -4*z + 7 = -5*v for v.

-3

Solve -i = -5*q + 5, 2*q - 3*q = i - 7 for q.

2

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

-2

Solve -5*c - 4*b = 40, 2*b + 7 + 15 = -3*c for c.

-4

Solve 5*t + 5 = 5*y, 5*t + y = -2*y - 29 for t.

-4

Solve -13*c = -8*c + 2*y - 50, 20 = 4*y for c.

8