Solve 23 = d - 4*q, -1 = -2*d - 4*q - 15 for d.

3

Solve -196*m + 17 = 2*t - 199*m, -2*m + 14 = 5*t for t.

4

Solve -2*o + 18 = -4*w, 5*w - 14 + 42 = -3*o for w.

-5

Solve 6 = 4*v + 2*f - 20, -f = -5 for v.

4

Solve 5 = -2*j + z, -z = 3*j + j + 13 for j.

-3

Solve 6*b + 3*t = 7*b - 3, -4 = 4*t for b.

0

Solve 0 = 2*g - 45*u + 43*u + 20, -4*u = -20 for g.

-5

Solve r - 4*y = 16, -2*y = -5*r + 3*y + 20 for r.

0

Solve -2*p = h + 7, 0*h = -3*p + 2*h - 14 for p.

-4

Solve -6*t = -3*l - 10*t + 12, 0 = -2*l + 3*t + 8 for l.

4