Solve -2*r = -3*u - 7*r + 40, -45 = -4*u - 5*r for u.

5

Solve 5*p + 0*p = 5*n - 20, -4*p - 5*n + 20 = 0 for p.

0

Solve 4*p + 3 = 3*w + 17, -3*p = 4*w + 2 for w.

-2

Solve 2*j - k - 8 = 0, -k + 45 = j + 44 for j.

3

Solve -2*x = z + 12, -8 = -z + x - 5 for z.

-2

Solve -4*o - 8 = 3*u - 3, 5*o = 3*u - 13 for o.

-2

Solve -23 + 8 = -5*v, 0 = 4*d - 3*v + 21 for d.

-3

Solve 3*x - x = 0, 0 = 2*p + 4*x + 10 for p.

-5

Solve -4*y = -4*j, 2 = y + 6 for j.

-4

Solve 4*z - 12 = -0*z + 2*x, 5*x + 6 = 2*z for z.

3