Solve -4*m - 2*a - 4 = 0, -3*m + 2 = -15*a + 19*a for m.

-2

Solve -p + 3 = 4*c, 0 = -3*c + 5 + 1 for p.

-5

Solve 8 - 4 = -y - 3*u, -u = -4*y - 3 for y.

-1

Solve 5*n + 4*b = n - 4, 2*b = -5*n - 2 for n.

0

Solve 2*n + 6 = 2*d, -3*d + d - n = 0 for d.

1

Solve p + 7*f - 19 = 3*f, -p - 17 = -5*f for p.

3

Solve -1 = -3*p - 5*o + 12, 0 = 5*p + o - 7 for p.

1

Solve -2*r + 8 = -5*s, r + 35 = -3*s + 28 for r.

-1

Solve -3*m + 5*u + 68 = 73, 3*u = 4*m - 8 for m.

5

Solve 2*u - 31 = -t - 39, -4*t - 20 = 2*u for t.

-4