Solve 0 = k - 3*o + 10, 3*o - 30 = -21*k + 18*k for k.

5

Solve 3*w - 1 + 4 = -3*k, -4*w + 2 = 2*k for w.

2

Solve 4*o + 2*b - 22 = 0, -o - b + 4*b = 12 for o.

3

Solve -27 = -2*m + 3*x - 1, -3*m - x = -6 for m.

4

Solve 2*l - 6 = -2*s + 14, -15 = -4*s + l for s.

5

Solve -14 = -2*a - 2*w - 16, 2*w = 8 for a.

-5

Solve 0 = -f - 5*i - 13, -4 = 9*i - 7*i for f.

-3

Solve 1 = -i + f, -5*i - f - 7 = -2 for i.

-1

Solve 7 = -3*m - 2*s, 4*m + 4*s + 5 = -11 for m.

1

Solve 5*b - o + 23 = 0, 3*b - 19*o = -22*o - 21 for b.

-5