Solve 2*v - 3*d + 5 - 21 = 0, 6 = -v - 2*d for v.

2

Solve 3*h - 9 = 0, -3*k + 21 = 55*h - 50*h for k.

2

Solve -3*v - 20 + 7 = r, r - 4*v = 15 for r.

-1

Solve -5*f = -2*g - 6, 2*f - 5*g + 0 = 15 for f.

0

Solve -2*h + 4*h + 4*s = -18, -5*s = 4*h + 27 for h.

-3

Solve 3*i + 11 = -5*y, 0*y + 3*y + 5*i + 13 = 0 for y.

-1

Solve -3*a + 6*a + 12 = 0, -4*a = 2*i + 22 for i.

-3

Solve -2*v + 30 = -4*r, 0*v = -3*v - 2*r + 5 for v.

5

Solve -2*r - 5*i = 8 + 5, 5*r + 2*i + 22 = 0 for r.

-4

Solve -5*h = -3*w - 26, -11 + 13 = 2*h + 3*w for h.

4