Solve 2*v = 4*r - 31 + 27, 5*v + 10*r = -30 for v.

-4

Solve -w - 3*z + 17 = 0, 0 = -3*w + 4*w + 5*z - 25 for w.

5

Solve -4*n - 21 = -5*m, -76*n + 81*n = -3*m - 17 for n.

-4

Solve 4*c = -5*f + 11, -5*c - 4*f = -13 + 6 for c.

-1

Solve 18*v = 17*v - x - 8, 5*x = -3*v - 30 for v.

-5

Solve 4*d - 4*k = 3*d - 4, 4*k = 4*d - 8 for d.

4

Solve 8*b - 3*b + p - 28 = 0, -b - 1 = -2*p for b.

5

Solve 3*z = -3*r + 7*z - 24, -z = 2*r + 5 for r.

-4

Solve -4*h - 5*z = -28, 0*h - 6 = -5*h + z for h.

2

Solve -w - 17 = -3*x - 22, -3*w + 11 = -5*x for x.

-1