Solve -5*u - 2*s = -23, -u + 6*s + 9 = 2*s for u.

5

Solve 10 = -4*d - 2*n, 4*n + 3 = -3*d + 8 for d.

-5

Solve -2*a + 3*k - 37 + 21 = 0, -5*a = -2*k + 18 for a.

-2

Solve 2*r - 74 = -4*g - 78, 0 = 4*r - 2*g + 8 for r.

-2

Solve -o - c = 6, 3*o + 4 = -4*c - 17 for o.

-3

Solve -5*z = 5*l + 30, 4*l - 18 = 2*l + 4*z for l.

-1

Solve 5*r = -5*p, 3*p - 13 = -4*r - 11 for r.

2

Solve -4*m = -2*q - 10, m + 1 = -q + 11 for q.

5

Solve -4*r + 16 = -2*o, 8*r - 6 = 2*o + 9*r for o.

-4

Solve 5*s - 5 = -4*x, -2*s + 18 + 1 = 5*x for x.

5