Solve -3*p - 15*x + 19*x = -15, -4*p + 4*x = -20 for p.

5

Solve -31*m + 2*r + 14 = -26*m, m - 3*r + 5 = 0 for m.

4

Solve 5*l + 0*m - 12 = -2*m, 0 = -5*l - 4*m + 4 for l.

4

Solve -2*r + 10 = -0*j + 4*j, 4*r = -3*j + 20 for j.

0

Solve -4*y - 12 = 0, 4*o + 12 = y + 23 for o.

2

Solve -6*s = 3*t + 9, 0 = -3*s + t - 6 - 11 for s.

-4

Solve 4*t + 0*t + 16 = 4*g, -5*g - 5*t = 0 for g.

2

Solve 0 = 4*f - 5*z + 19, 0*z - 11 = 5*f - 2*z for f.

-1

Solve -38*s + 2*y = -39*s + 7, 2*y = s - 3 for s.

5

Solve -2*r + 2*u = -2*u + 10, -5*r = -u + 7 for r.

-1