Solve d - 4*d + 5*x = 13, 2*d + 10 = 4*x for d.

-1

Solve -b - h = 19 - 26, 5*h = 3*b + 19 for b.

2

Solve -5*f - 12 = -w, 5*w - 24 = -3*f - 20 for w.

2

Solve 2*a = 5*p - 11, -46*p = 2*a - 44*p - 10 for a.

2

Solve 20 + 5 = -5*c, 4*q + 4*c + 20 = 0 for q.

0

Solve 20 = -5*x, -5*d - 5*x - 20 = 15 for d.

-3

Solve -3*s = 4*r + 39, -r + 59*s - 63*s - 26 = 0 for r.

-6

Solve -n = -x + 2, -n + 12*x + 18 = 15*x for n.

3

Solve 0 = 5*t + j - 12, -3*j - 9 = -4*t - 7 for t.

2

Solve -4*s - 4*n = 28, n + 0*n = -2 for s.

-5