Solve 0 = 4*f + 12, -4*f + 5*f = -2*d - 3 for d.

0

Solve 2*u + 7 = -5*m + 6*m, -9 = -5*m - 3*u for m.

3

Solve -5*x + 2 = -4*z, x + 43 = 3*z + 50 for z.

-3

Solve 4*k + 3 = 22*f - 23*f, 12 = -2*k - 4*f for k.

0

Solve 2*q + 3*o = -20, -q - 12 = 4*o - 2*o for q.

-4

Solve 0 = -3*s - 2*d, -4*d = -s + 5*s for s.

0

Solve 0 = 3*w + 3*p + 9, 3*w - 4*w + 2*p = 9 for w.

-5

Solve -3*t + 4 = -f, 8*f - 3*f = 4*t - 9 for f.

-1

Solve -2*n + 2*u - 5*u = 5, -2*u = 2 for n.

-1

Solve 2*h + 36 = 4*q, -2*q - 80 = 2*h - 86 for q.

7