Solve 3*r = 3*o - 21, -9*r + 3*o - 23 = -5*r for r.

-2

Solve 3*z - 4*h - 10 = 0, -2*z - 5*h - 1 = -0 for z.

2

Solve 0 = 5*a - 4*j - 25, 2*j + 20 = -2*j for a.

1

Solve -3*o - 2 = 5*r - 6, 3*r = 5*o + 16 for r.

2

Solve 4*s = 4*a + 8, 2*a - 4*s = 5*a + 27 for a.

-5

Solve 5*s = 5*m, 5*m + 3*s + 20 = -2*s for m.

-2

Solve 0*c - c + 5*q + 21 = 0, 5*q + 9 = 4*c for c.

-4

Solve -u + 0 = q + 1, -5 = -5*u - 3*q for u.

4

Solve 17 = 5*m - 16*p + 13*p, m - 5*p = 21 for m.

1

Solve -4*r + 3*m = 17, -13*r - m = -18*r - 13 for r.

-2