Solve 2*r + 2*q = 12, 28*r + 2*q = 33*r - 23 for r.

5

Solve -k - 4*y - 13 = 0, -2*k - 2*y - 2 = -0*k for k.

3

Solve 32 = -4*h - 2*d, 247 = d + 249 for h.

-7

Solve 13*f + 5 = -o + 12*f, -5*o - 2*f - 22 = 0 for o.

-4

Solve -4*k = -z + 9, -14*z = -10*z + 2*k for z.

1

Solve -16 = 5*r + m, 1 = -2*m + 9 for r.

-4

Solve -3*b - 2*q + 2 = -6*q, -3*q + 4 = -5*b for b.

-2

Solve 2*p + 3*p + 5*b + 25 = 0, 5*b = 3*p + 7 for p.

-4

Solve 52*j - 49*j + 5*l + 47 = 0, l + 19 = -3*j for j.

-4

Solve 10*p = 15*p + 5, 2*p = -4*r + 10 for r.

3