Solve 2*a = 2*d, -7 = a - 4*d - 19 for a.

-4

Solve -4*w = k - 11, 0 = w - 2*w - 4*k + 14 for w.

2

Solve -3*j + 18 = -r, 4*j = 3*j - 5*r - 10 for j.

5

Solve -10*o + 9*o - 14 = -4*z, z = -2*o - 1 for z.

3

Solve -4*j + 11 = -5, 4*j - 31 = 3*i for i.

-5

Solve 2*d - 5 = 4*l + 9, -35 = 4*l + 5*d for l.

-5

Solve 4*d - 6 = -r + 4, -19 = 5*r - 3*d for r.

-2

Solve 12*y - 7 = 8*y - 3*q, -4*y + 2*q - 18 = 0 for y.

-2

Solve -3*l - 2*f = -4*f - 13, -4 = -4*f for l.

5

Solve -4*l - 15*d = -12*d - 14, 6 = -3*d for l.

5