Solve 2*f + 5*q + 25 = 0, 0 = -7*f + 3*f + 4*q + 20 for f.
0
Solve 7*y + 4*o = 27, 273*o = 2*y + 270*o - 16 for y.
5
Solve -3*k - 2*a - 4 + 2 = 0, 3*k + a = -1 for k.
0
Solve 0 = -4*g - 3*v + 5, -g - 4*v - 10 = g for g.
5
Solve 0 = -2*n, 2*v + 4*v = 2*v + 3*n - 12 for v.
-3
Solve -5 = -3*u + 5*i, 15 = u + 4*u - 5*i for u.
5
Solve -r = 3*d + 16, 3*d + 0*d = -4*r - 28 for r.
-4
Solve 0 = -3*q - 4*p + 9, -5*p + 18 + 0 = -3*q for q.
-1
Solve 0 = 3*c - 3*i - 0 + 12, -5*c + 20 = 5*i for c.
0
Solve -33 = -4*z + 5*s - 5, 0 = -z - 4*s - 14 for z.
2