Solve 4*d - 26 = 2*u, u - 6 = 4*d - 27 for d.

4

Solve -5*w + 5*d = -8*w + 5, w + 5 = -5*d for w.

5

Solve -4*y + 6 = 2*n, 3*n - y - 4 = -2*n for n.

1

Solve b - 13 = 3*q, -77 = 5*q - 62 for b.

4

Solve 28*a = 23*a + 4*t + 5, 4*a + 5*t = 45 for a.

5

Solve -o = -c - 9, 9*c + 6 = 5*c - 2*o for c.

-4

Solve -2*w = 9*f - 7*f - 20, 25 = w + 4*f for w.

5

Solve m - 5*t = 0, -20*m = -21*m - 2*t for m.

0

Solve 15 = 5*p, 16 = -5*h + 2*p - 15 for h.

-5

Solve 0*a - 5*a + 4*y + 7 = 0, 3*a - 6 = 3*y for a.

-1