Solve -4*n - r + 5 - 18 = 0, 4*n + 1 = -5*r for n.

-4

Solve -l - 4*j = -7, -30 = -10*l + 13*l - 5*j for l.

-5

Solve -2*m - 8 = j, -m - 3*m + j - 10 = 0 for m.

-3

Solve 82*o + t = 77*o + 25, -t - 25 = -5*o for o.

5

Solve 4*a - 2*u = -0*u + 18, -2*a + 6 = 2*u for a.

4

Solve -4*x + 6*x + 3*l = 20, l = -4*x + 20 for x.

4

Solve s = -3*r - 15, 5*s - 18 + 8 = 2*r for r.

-5

Solve -3*b + 2*x + 2 = 2*b, 14 = -b + 4*x for b.

2

Solve -2*s + 20*l = 19*l - 7, -2*s - 3*l = 13 for s.

1

Solve z - 135*k - 5 = -130*k, 5*k - 5 = 3*z for z.

-5