Solve -2*k + 28 = -6*k - 4*j, k = j + 1 for k.

-3

Solve 0 = 2*j - 2*f, -8*f - 12 = j - 5*f for j.

-3

Solve 0 = -3*u + 8*u - 10, -2*v - 2*u - 2 = 0 for v.

-3

Solve 5*j - 25 = 0, -3*z - 3*j + 28 + 2 = 0 for z.

5

Solve -25 = -5*u, 20 = 18*a - 21*a + u for a.

-5

Solve -4*g = -3*r + 18, 5*g + 8*r - 11*r + 21 = 0 for g.

-3

Solve -o + 0*o = -m, -4*m = 4*o - 24 for m.

3

Solve 5 = r - 3*r - i, -2*r + 4*i + 20 = 0 for r.

0

Solve -r + 9 = u, 3*r - 58 + 36 = -2*u for r.

4

Solve 50*w - 55*w = 5, -3*k + 4*w + 16 = 0 for k.

4