Solve 0 = 4*d + 5*h - 21, 5*h = -d + 2*h + 7 for d.

4

Solve -5*x = 2*o - 32, 5*x + 21 = 5*o + 81 for x.

8

Solve 5*a + 35 = 6*s - 8*s, -a - 5*s - 30 = 0 for a.

-5

Solve -3*u - 4*q + 18 = 11, -u + 3*q = -11 for u.

5

Solve 7 = 4*p - 3*y, -1584*y + 1580*y + 12 = 0 for p.

4

Solve 4*h - 14 = -2*f, h + 4*f = -22 + 15 for h.

5

Solve -11*w = 5*g - 12*w - 1, 4*g = -3*w + 16 for g.

1

Solve -2*t + 8 = c - 0, -5*c + 4*t + 12 = 0 for c.

4

Solve -d + 2*n = -0*n + 5, 5*n = 5*d for d.

5

Solve 3*w - 8 = -4*v, -3*v - 10 = -v - 2*w for v.

-1