Solve 2*u - 5*l + 25 = 0, -20 = 40*u - 39*u - 4*l for u.

0

Solve 17 + 12 = -8*u + d, 0 = -5*u - d - 23 for u.

-4

Solve 0 = 5*r - 3*i + 40, -4*r + i - 35 = -2*i for r.

-5

Solve -4*s + 2 = 2*n - 6, 4*n + 2*s = 10 for n.

2

Solve 17*o - 25 = -3*j + 12*o, 4*j = -5*o + 25 for j.

0

Solve 0 = 4*g + 3*b - 15, -b - 9 = -10 for g.

3

Solve w = -3*k - w - 5, 0 = -4*k - 4*w - 4 for k.

-3

Solve 5*w = -2*z - 5 - 0, -3 = -3*z - 4*w for z.

5

Solve 0 = 2*v - 15*z + 10*z - 10, -3*v = 3*z - 15 for v.

5

Solve -b + 5*i = b + 7, 19 = b + 5*i for b.

4