Solve -v - 2 = 0, -2*v = 4*u + 2*v for u.

2

Solve -4*d + 2*r - 12 = -0*r, -3*d + 13 = 4*r for d.

-1

Solve 0 = f - 5*c - 14 - 9, 4*f + 4*c = -28 for f.

-2

Solve -3*q + d + 2*d + 21 = 0, 3*q = 2*d + 19 for q.

5

Solve -13 + 3 = 4*o + 2*x, 4*x = o + 16 for o.

-4

Solve -3*r = 2*b + 13, -2*r - 2*r = -2*b + 36 for r.

-7

Solve -4*o = -3*o + 2*r + 11, 0 = -5*o - 5*r - 35 for o.

-3

Solve 2*o - 25 = -3*y, 2*o + 15 = 5*o for y.

5

Solve h = 2*w + 2*w + 15, 2*h - 5*w - 15 = 0 for h.

-5

Solve -8*a = -9*a + 5*t + 1, -16 = -16*a + 4*t for a.

1