Solve 2 = 4*h + 2*v, 5*h - 16 = 2*v + 9 for h.

3

Solve 4*q + 18 = 5*j, -5*q = -9*q - j + 18 for q.

3

Solve 181 = -3*x + 169, 0 = -5*v - x + 31 for v.

7

Solve 5*k + 4*h + 29 = 0, 5*k + 20*h - 25*h + 20 = 0 for k.

-5

Solve 4*v = -2*t + 16, 2*t - 2*v + 19 = 5 for t.

-2

Solve 4*j - 5*u - 40 = 0, -83*j + 12 = -79*j + 2*u for j.

5

Solve -3*w - 1 = 2*w - 2*h, -5 = -w + 3*h for w.

-1

Solve -3*i - 5 = -2*a, a - 2*i - 1 - 4 = 0 for a.

-5

Solve r + 0*r - 2*o = 3, r + 4*o = -9 for r.

-1

Solve 0 = -2*i - 8*k + 4*k - 10, -3*i + 5 = -4*k for i.

-1