Solve 2*a = -10, 30*u + 10 = 31*u - a for u.

5

Solve 3*i = 3*g + 3, 3*i - 12 = -4*g - 2 for g.

1

Solve -l + 6*l = 4*q + 41, -4*q - 11 = l for l.

5

Solve 0 = 2*b - 4, b - 1 = -2*d - 7 for d.

-4

Solve 0 = -z + 3*c - 3, -2*z - 6 = 5*c - 2*c for z.

-3

Solve 3 = -r, -13*l - 5*r = -16*l + 18 for l.

1

Solve 2*v - 10 = -5*b, 8 + 11 = -3*v + b for v.

-5

Solve -2*s = w - 0*s - 13, -4*w + 16 = -s for w.

5

Solve -2*u - 16 = -4*n, 0 = -5*u - 9*n - n for u.

-4

Solve -9*f - 5*c = -8, -8 = f + 4*c - 2 for f.

2