Solve 31 = -y + 26, -2*k + 17 = -5*y for k.

-4

Solve -2*a - 2 = -q - 3, a - 4*q = -10 for a.

2

Solve 0 = 5*j, 25*r = 20*r - 3*j - 10 for r.

-2

Solve w - 4*d = 16, -3*w + 5*w + 8 = -2*d for w.

0

Solve -6*w + 9 = 4*q - 17, -6 = -q - w for q.

5

Solve -4*u + 2*f - 30 = 0, 4*u + 12 - 2 = -2*f for u.

-5

Solve 2*q + 3 = -5*r, -2*r + 0 = -5*q + 7 for r.

-1

Solve 10*u = -5*r + r - 20, -3*u - 4*r = -8 for u.

-4

Solve -4*o - 5*g + 25 = 0, 2*o - 2*g = -2*o - 10 for o.

0

Solve 5*r - 193*n = -192*n, -r = -5*n for r.

0