Solve 0 = -4*r - 4, -3*f = -2*r - 2*r - 1 for f.
-1
Solve 2*w - 16 = -6, 0 = 2*k + 3*w - 5 for k.
-5
Solve 0 = y + 4*t + 8, t + 1 = -5*y - 1 for y.
0
Solve -20 = 4*i - 4*a, -6 = -a - 3 for i.
-2
Solve -3*o - z + 0*z - 7 = 0, 0 = 2*o + 5*z + 9 for o.
-2
Solve -4*u - u + 35 = 5*k, 2*u - 18 = -3*k for k.
4
Solve 5*t - 13 = 4*l + 11, -2*t + 4*l = -12 for t.
4
Solve 0 = -5*t - r - 17, 5*t + 3*r - 6 + 17 = 0 for t.
-4
Solve -a + 3*s = -0*s + 8, 3*a + s + 4 = 0 for a.
-2
Solve -p - 10 = 4*d, -4*d + d - 3*p - 3 = 0 for d.
-3