Solve 20*i = 3*b + 23*i - 27, 0 = 2*b - 2*i - 14 for b.

8

Solve 5*f - 4*y + 2 = -0*f, 5 = f + y for f.

2

Solve -k + 11 = 3*u, -k = -3*u + 3*k + 1 for u.

3

Solve 3*c + 5*b = -30, -2*c - 13 = 4*b + 9 for c.

-5

Solve -2*s = 3*z + 7, 55 = -5*s + 30 for z.

1

Solve 2*x + 2 = 12, -5*x + 5 = 5*u for u.

-4

Solve 9 = y - 3*b, -4*b + 5*b + 13 = -3*y for y.

-3

Solve 0*f + f + 4 = -3*r, -10 = -2*f for r.

-3

Solve -a - 1 = -l, 7*a - l = 8*a - 5 for a.

2

Solve 3*j - 5*d = -5, -1 - 3 = -4*j + 4*d for j.

5