Solve 5*u + 5*x = 20, 4*u - 8*u = -3*x - 16 for u.

4

Solve 4*f = 2*f + r - 8, 0 = 3*f + 4*r + 23 for f.

-5

Solve -3*c - 1 + 29 = 4*z, -8 = 2*c - 4*z for c.

4

Solve -2*n + n - 9 = 2*y, 3*n = 4*y + 13 for n.

-1

Solve t - 2 = -3*k, 5*k - 2*t - 10 = 4*k for k.

2

Solve 0 = -2*t + 6*o - o + 5, 3*o = 5*t + 16 for t.

-5

Solve t - 9 = -r, -4*t + 4*r + 5 = 9 for t.

4

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

2

Solve -3*a + 32 = -4*w, -4*a - 15*w + 13*w = -6 for a.

4

Solve 0 = 2*k - 5*i + 1 - 8, -k = -i - 2 for k.

1