Solve 0 = -68*p + 72*p - 5*t - 22, t = -5*p + 13 for p.

3

Solve -80*q + 75*q + 3*u + 18 = 0, -4*u - 4 = 0 for q.

3

Solve -3*g - 4*u = -26 + 7, 0 = 5*u - 5 for g.

5

Solve -19 = x - 5*t, 7*x + 4*t = 2*x + 21 for x.

1

Solve -t = 8, 2*k + 9*t = 8*t for k.

4

Solve -3*c + 49 - 37 = t, -4*t = 5*c - 20 for t.

0

Solve z + 11 = -2*g - 4, -35 = 3*g + 4*z for g.

-5

Solve 0 = -5*s - 10, -5*s = 2*i - 4 + 14 for i.

0

Solve -4 = 4*c, -2*c - 12 = q - 10 for q.

0

Solve -x - 5*g + 23 - 2 = 0, 0 = -5*g + 20 for x.

1