Solve -3*l - 4*r = 2, 87*l + 3*r + 14 = 91*l for l.

2

Solve -d + 8 = 2*r, -6*r + r + 20 = -4*d for r.

4

Solve 4*m + 2*c - 20 = 0, -17 = m - 0*c - 5*c for m.

3

Solve 5*m - 4*c - 2 = 0, -3*m + 2*c + 2 + 0 = 0 for m.

2

Solve -21 = -2*w - 3*w + 2*u, -5*u = -5*w + 30 for w.

3

Solve 0 = y - a - 5, 2*y + 0*a = -3*a + 5 for y.

4

Solve -45*m = 5*c - 47*m - 26, -3*m - 13 = -c for c.

4

Solve d = -5*p - 4*d + 5, 4*p - 11 = 3*d for p.

2

Solve 0 = -4*j + 5*f + 25, 3*j - 10 = f + f for j.

0

Solve -p + 3*r = -22, -r = 4*p - 59 + 36 for p.

7