Solve -a - v = -1, 3*v = -17 + 20 for a.

0

Solve 2*u + 0*z = 2*z + 12, -z = 2*u - 6 for u.

4

Solve 9*c + h = 11*c - 13, -5*c + 25 = -h for c.

4

Solve 0 = 2*k - 4, -2*t - 3*k = -2*k for t.

-1

Solve -21 = -3*b - 2*s, -14 = -4*b + 4*s - 6 for b.

5

Solve -v + 0*d + 15 = 2*d, 0 = 3*v - 4*d + 5 for v.

5

Solve -p - 2*k - 5 = 0, 1 = -2*p + k - 4 for p.

-3

Solve -12 = -2*x + 3*w, -2*w = -3*x - 7*w - 20 for x.

0

Solve -2*w - 14 = -4*c, -2*c - 9 = 5*w + c for w.

-3

Solve 8 = 2*m + 2*p, -3 = -40*p + 37*p for m.

3