Solve c = -f + 5*c - 9, 0 = -3*f + 5*c - 13 for f.

-1

Solve -17 = -3*v - 2*t + 6*t, 7*v - 19 = -t for v.

3

Solve s = 4*r + 2 - 0, s + 5 = -3*r for r.

-1

Solve -12*l + 2*u + 56 = 0, -2*l + u + 3 = -5 for l.

5

Solve -2 = 5*m + p, -6 = -0*m + 3*m - p for m.

-1

Solve -l = 2*r - 4*l - 1, 0 = -l - 3 for r.

-4

Solve -4*c - a - 3*a = -4, 0 = -c - 5*a - 15 for c.

5

Solve 3*l + 0*v = v + 2, 0 = 4*l + 5*v + 29 for l.

-1

Solve -10 = -3*w - g, 4*w + 2*g + 2 = 14 for w.

4

Solve -3*t + 3 = 4*y - 11, -3*t = -4*y + 2 for t.

2