Solve -5*x - 37 = -4*d, 2*d - 15 = 4*x + 11 for d.

3

Solve -n - 2*h = -6*n + 20, -h = 0 for n.

4

Solve -5 = 2*q - r, 3*q - 5*r - 24 + 14 = 0 for q.

-5

Solve 57 = 2*d + 3*n + 69, 4*n = 4*d - 36 for d.

3

Solve 0 = r - 4*k - 17, -9 = -3*k + 6*k for r.

5

Solve 0 = -4*g - 4*p + 4, 30*g - 31*g - 4 = -4*p for g.

0

Solve 2*u + 2*f + 18 = 0, 4*f - 3*f = 2*u + 6 for u.

-5

Solve -30 = -2*r + 5*b, -6*b - 1 = 3*r - 2*b for r.

5

Solve -1 = 2*n - 2*w - 5, 2*n + 5*w = 4 for n.

2

Solve -2*a = -3*b - 60 + 65, -b + 30 = 5*a for b.

5