Solve 3*h + 19 - 51 = 4*v, -3*v - 2*h - 7 = 0 for v.

-5

Solve 3*k + 3*a - 13 = 17, 3*a - 20 = -k for k.

5

Solve -a + 0*a + 4*b = 18, 3*b = -a + 10 for a.

-2

Solve 4*r - 2 = 3*c, 168*c - 172*c = -2*r - 4 for c.

2

Solve 0 = 4*c + 2*z + 2, -2*c = 4*z + 15 + 1 for c.

2

Solve -5*p + 40 - 20 = 5*b, -4*b = 5*p - 19 for p.

3

Solve 15 = -3*k - 3*r, -5*k + 7*r - 3*r = 7 for k.

-3

Solve 2*b + 3*z + 19 = -3*b, -6 = -3*z for b.

-5

Solve 4*r - 2*i - 12 = 0, -17*r - i + 8 = -12*r for r.

2

Solve -1 = -2*i + 5*p + 13, 3*i = p - 5 for i.

-3