Solve 3*f - 15 = -5*z - 5, -3*f = 3*z for f.
-5
Solve -2*g + 15 = -2*t - 1, 0 = -5*t - 4*g + 5 for t.
-3
Solve -15 = -4*m - 5*g, -2*m = -5*m + 4*g - 12 for m.
0
Solve f - r + 1 - 5 = 0, -21 = -4*f + 5*r for f.
-1
Solve -4*j + 8 = 4*k, 2*j = 5*k + 29 - 4 for k.
-3
Solve -5*r = 2*n + 5, 2*r + 176 = 5*n + 145 for r.
-3
Solve 2*n + 6 = 4*a, -2*n = 3*a - 3*n - 6 for a.
3
Solve -2*o - 5*l = 23, 5*l + 1 - 2 = 4*o for o.
-4
Solve -5*l - 4*o + 3 = -o, -l + 3*o + 15 = 0 for l.
3
Solve 3*l - 6 = 3*v, -2*l + 17 = -4*l - 5*v for l.
-1