Solve 4*r = 3*f + 6*r - 4, -4 = -2*r for f.

0

Solve f - 5 = 5*d, 33*d = 34*d + f + 1 for d.

-1

Solve 18 = 4*n + l, 0 = 3*n + l - 11 - 3 for n.

4

Solve -10 = -s + 6*a - 11*a, -a = 5*s + 22 for s.

-5

Solve 3*a + 9 = -3*x, -9*a = x - 14*a - 15 for x.

0

Solve -22 = 4*n + 3*t, -2*t + 7 = 3*n + 23 for n.

-4

Solve -4*s + 9 = -s, -9 = -2*j - 3*s for j.

0

Solve 4*l - 4*y - 20 = 0, 0 = 23*l - 20*l + 3*y - 3 for l.

3

Solve 4*c + 5*s + 5 = 0, -3*s + 6*s - 9 = 0 for c.

-5

Solve 0 = -s - 3, -a - 3*a - 4*s - 16 = 0 for a.

-1