Solve 30 = -5*c - 5*s, 5*c - 22*s = -18*s - 21 for c.

Solve -3*a - 9 + 12 = 5*c, 0 = -5*c + 2*a + 23 for c.

3

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

-1

Solve c + t = 0, 0 = 3*c + c + 5*t + 5 for c.

5

Solve -4*j + 9 = 2*t + 35, -5*t = 4*j + 35 for j.

-5

Solve 3*a + 4 = -5*c, -2 = 2*a + 3*c - 0 for a.

2

Solve 0*c + c - 2*q = -1, -3*c + 2*q = 11 for c.

-5

Solve 18 = 5*h + 2*z, -7*z = -11*z + 16 for h.

2

Solve s = 5*u - 6, -2*s + 3*u = -8 + 6 for s.

4

Solve -4*p = -20, -5*p + 12 + 9 = -2*k for k.

2

Solve -c + 0 = -2*v + 11, -5*c - v = 11 for c.

-3