Solve 0 = -3*u + 4*y - 17 + 42, -y = 2*u - 2 for u.

3

Solve -u + 4*b + 8 = 0, -5*u + 8*b - 14 = 6*b for u.

-4

Solve 4*t + 4*d - 28 = 0, -4*t + 29 - 3 = 3*d for t.

5

Solve 0 = 4*u - 4, 2*r = 5*u + 6 - 1 for r.

5

Solve -10*b - 5 = -8*b - y, -4*y - 20 = 0 for b.

-5

Solve -4*j = r + 17, -r + 5*j + 1 = -9 for r.

-5

Solve -2*s = -2*i + 5*i, -2*i + 8 = 4*s for i.

-2

Solve 164*b + 7 = 2*v + 159*b, 28 = -4*v - 4*b for v.

-4

Solve 3*z + 2*j = 1, 6*j = 5*z + j - 35 for z.

3

Solve 3 = 2*z - 10*w + 9*w, -3*w = 9 for z.

0