Solve 0 = j - 2*r + 16 - 8, 0 = 2*j + 2*r + 4 for j.

-4

Solve 4*r + n + 18 = 0, 61*r - 5*n = 62*r + 14 for r.

-4

Solve 3*q - 9 = -3*s + 5*s, -q + 3 = -3*s for q.

3

Solve -i + z + 1 = 0, 17 = 2*i - 7*z + 2*z for i.

-4

Solve 0 = -t - 4*y - 13, -4*t - 3 = -y + 15 for t.

-5

Solve 3*x = t + 11, 2*x = 3*x + 4*t - 21 for x.

5

Solve -4*w + d + 17 = -w, 17 = -2*w - 5*d for w.

4

Solve x + 5*f = 15, -4*f = 7*x - 3*x - 12 for x.

0

Solve 0 = 3*f - 2*x - 11, 0 = 2*x - 7*x - 5 for f.

3

Solve -11*r + 10*r - 12 = 2*z, 0 = 4*z + 20 for r.

-2