Solve 0 = -2*k + 6*k + 5*l + 30, 3*k + 3*l = -21 for k.

-5

Solve -d - 2*v - 8 = 0, -d - d = -4*v for d.

-4

Solve v - 5*j + 24 = -0*v, 0 = -5*v + 4*j - 15 for v.

1

Solve -4*o + 16 = -r - r, -5*o = 5*r - 5 for o.

3

Solve 3*i + 2*i = 5*z + 10, 2*z = -i - 7 for i.

-1

Solve x + 8 = 3*d - 0, -2*x - 8 = -4*d for d.

4

Solve -15 = -13*s + 16*s, 5*a + 4*s - 5 = 0 for a.

5

Solve z = b - 1, b - 3*z - 1 = 4 for b.

-1

Solve -3*b + 12 = -5*k, 0 = 3*b + 3 - 0 for k.

-3

Solve -2*b = 3*c + 15, -300*c + 296*c = 12 for b.

-3