Solve -28 = 5*s - 3*u, -5*s - 2*u - 2*u = 21 for s.

-5

Solve 0 = 3*s - 2*z + 8, 4*z - 1 = 3*z for s.

-2

Solve 5*j - 10 = -3*p, -j - 9*p + 13*p = -25 for j.

5

Solve 2*i - i = -5*g - 9, 0 = -5*g + 4*i - 14 for g.

-2

Solve -6*r + 7*r - 5*t = 20, -4*r - 10 = -2*t for r.

-5

Solve 0 = z + 2*q + 5, q = -2*q for z.

-5

Solve -a - 4*t = a - 2, -4*a - 2 = 2*t for a.

-1

Solve 0 = 5*g + 18*t - 21*t - 8, 4*t = 4*g for g.

4

Solve -8 = 5*x + 2*q + 5, 2*x - 10 = 3*q for x.

-1

Solve 3*d = s + 11, -4*s - 7 = 3*d - 8 for d.

3