Solve s + 8 = 4*r, -13*s - 5*r = -15*s - 7 for s.

4

Solve -2*b + 6*b = -2*a - 2, 2*a + 5*b = 0 for a.

-5

Solve -126*a + 124*a + 3*r = -4, -5*a - 3*r = 32 for a.

-4

Solve -4*r - 2 = -2*v + 8, -4*v = -2*r - 2 for v.

-1

Solve -6*d = 3*b - 4*d - 4, b + 4*d = -12 for b.

4

Solve -25*k = -26*k + a + 9, -5*k = -4*a - 41 for k.

5

Solve -3*d - 2*i = -5, 0*d = -2*d - i + 4 for d.

3

Solve 5 = w - 3*o, o + 10 = -2*w + 4*w for w.

5

Solve 0 = 4*l - 4*i - 28, -l - 4*l = 3*i - 11 for l.

4

Solve -5 = k - 3*p, -6*p - 8 = -5*k - 2*p for k.

4