Solve 20 = -4*s + 2*q, -7*s + 2*s = -4*q + 28 for s.

-4

Solve -f - 2*y = 12, f + 5*y + 14 = -10 for f.

-4

Solve -3*i + 28 - 5 = -4*u, 3*u = -15 for i.

1

Solve w + 8 = -2*z - 2*w, 0 = 5*z + 3*w + 20 for z.

-4

Solve -4*w + 1 = -3*s - 6, 3*s = 2*w - 11 for w.

-2

Solve 5*t - t - 2*s = 6, -4*t - 5*s + 27 = 0 for t.

3

Solve -22 + 16 = -j - t, -5*j - 2*t + 27 = 0 for j.

5

Solve 5*g + 5 = -5*d, 12*d = 11*d + 5*g + 5 for d.

0

Solve -2*x = -3*s + 25, -15 = -5*s + 3*x + 25 for s.

5

Solve 0*h - 3*x + 5 = 4*h, -2*x = -h + 15 for h.

5