Solve l + 4*a = 20, 7 - 23 = -5*l + a for l.

4

Solve 5*u - 8 = -5*z + 12, 5*z + 20 = 5*u for u.

4

Solve -4*y - 29 = -33, -3*s - y = -7 for s.

2

Solve -4*v - 10 = m, -2*m = v + 6 - 0 for m.

-2

Solve 3*f - 35 = 11*n - 15*n, -4*n - 2*f = -30 for n.

5

Solve 2*k - k = -2*h + 2, -4*h = 4*k for k.

-2

Solve -5*d - 3*p + 11 = 15, -3*d = 5*p + 12 for d.

1

Solve 6*n = u + n, 0 = 2*u - 5*n - 5 for u.

5

Solve -2*s + 0*s + 4 = -2*a, 1 = 5*s + 4*a for s.

1

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

3