Solve 3*d = 4*r + 1, -4*r = -7*r + 3*d for r.

-1

Solve 0*i + i = 5*s - 20, 0 = 4*i + 4*s - 16 for i.

0

Solve -2*d = 3*m + 14, 4*m = d - 2*d - 17 for d.

-1

Solve -l - 3 = 0, 12*a + 3*l + 11 = 11*a for a.

-2

Solve -2*y + 2*t = -18, -3*y + t - 6 = -5*y for y.

5

Solve -4*i = -5*j - 28, -20*i = -j - 21*i - 2 for j.

-4

Solve 12 = -4*m + 2*o - 10, 4*m - 4*o = -24 for m.

-5

Solve 0 = 5*d - 2*y + 13, 5*d - 4*y - 7 + 28 = 0 for d.

-1

Solve 12 = 3*w - 3*i, -68*w + 14 = -65*w - i for w.

5

Solve 2*y = -4*z - 0*z + 12, 0 = -z + 4*y - 6 for z.

2