Solve 0 = -4*z - 12, -3*z - 1 = -2*h + 18 for h.
5
Solve 2*l + 39*r + 4 = 41*r, 3*l - r + 4 = 0 for l.
-1
Solve m = 6, 18*d - 19*d + 9*m = 50 for d.
4
Solve 3*d = -2*f - 5 - 1, 5*d + 10 = 6*f for d.
-2
Solve 8*b - 6*b - 19 = 5*x, -23 = 4*x + b for x.
-5
Solve -v - 3*m + 12 = 0, 4*v + 58*m - 55*m - 12 = 0 for v.
0
Solve k = 4*l + 54 - 31, -l + 10 = 5*k for l.
-5
Solve 2*v = -6, 6*z + 16 = 2*z - 4*v for z.
-1
Solve 0 = -5*v + 5*w - 30, 0 = -v - 21*w + 23*w - 12 for v.
0
Solve 0 = -y + 3*z + 6, y + 5*z = -y + 1 for y.
3