Solve -13 = 2*r + 2*l - 15, -l + 1 = 3*r for r.

0

Solve 3*k + 28 = 6*y + 1, 4*y + 3 = -5*k for k.

-3

Solve -5*j + 78*g - 77*g = -10, 2*g = 5*j - 5 for j.

3

Solve 4*v = 3*t + 8, -11*t + 6*t - 5*v - 25 = 0 for t.

-4

Solve -4*s - b = 16, -4*s = -6*b + 9*b + 16 for s.

-4

Solve 2*l + 6 = 0, -m - 3*l = -5*m - 7 for m.

-4

Solve 0 = -3*j + l - 10, 0 = 2*j - l + 6*l - 16 for j.

-2

Solve -4*c = 2*i - 13 + 17, -4*i - c = 8 for i.

-2

Solve u + 2*c + 20 = 7*c, -4*u + 5*c - 5 = 0 for u.

5

Solve 2*a + 16 = -4*p, 3*a + 4 = -0*a + 4*p for a.

-4