Solve 0*s + 19 = -4*s + o, -s - o = 6 for s.

-5

Solve -12 = u + 3*d, 4*u - 7*d + 3 = -10*d for u.

3

Solve -2*m + 5*u = 16, 5*m + 0*u + 2 = 3*u for m.

2

Solve -4*h + 5*z = -3, -11*h + 12*h - 5*z = 12 for h.

-3

Solve -3*d - 3*x - 15 = -2*d, -2*d + 2*x = -2 for d.

-3

Solve -4*p + 18 = -2*i, 231 = -p - 4*i + 240 for p.

5

Solve -5 = -a + 4*t, -3*a - 2*t = 2*a + 19 for a.

-3

Solve 4*u + 4*g - 20 = 0, -6*g = -2*u - 5*g + 4 for u.

3

Solve 5*x + 24 = -3*k, -9*x + 15 = -12*x - 2*k for x.

-3

Solve -4*z - 194*v + 192*v = 22, -z - 2*v - 13 = 0 for z.

-3