Solve 4*z = i + 17, -4*i + 21 = -5*i + 5*z for i.
-1
Solve 30 = -0*i + 2*i - 4*g, 3*i - 5*g = 40 for i.
5
Solve 2*z + 36 - 46 = 2*h, -5*h + 3*z = 15 for h.
0
Solve 17*v = f + 13*v + 4, 4*f = 2*v - 16 for f.
-4
Solve 3*w = 0, 10*w - 5*w + 2 = -2*f for f.
-1
Solve -5*l + 10 = -p, 4*p - 5 = 9*l - 4*l for p.
5
Solve -5*u - 27 = -x + 1, -2*u + 3*x = 19 for u.
-5
Solve -23 = -r - 4*b, 56*b - 58*b + 1 = -3*r for r.
3
Solve 0 = -3*o - 3*r - 21, -6*r + 3*r - 15 = o for o.
-3
Solve -n = -5*z - 22, 6*n + 4*z = 4*n - 12 for n.
2