Solve 2*l - 7 = -r, -l = 5 - 7 for r.

3

Solve 4*j + 3*r + 2*r = 16, 2*j = -r + 2 for j.

-1

Solve 0 = -p - 4*x, -2*x + 9 - 23 = -3*p for p.

4

Solve 3*l - o = -4*o - 3, 5 = -5*l + 3*o for l.

-1

Solve -2*l + 20 = 3*d, -l = -2 - 2 for d.

4

Solve -3*v = -5*c + v + 40, -4*c + v + 21 = 0 for c.

4

Solve 5*d + 7 - 2 = 5*f, 5 = 5*f - 2*d for f.

1

Solve -3*k - 2*b = -b - 17, 2*k - 3*b + 7 = 0 for k.

4

Solve 3*q + 10 = -5*j, 2*j - 34 = 5*q - 7 for j.

1

Solve 3*x + 20 = -a, -2*x - 5 = -3*a + 2*x for a.

-5