Solve q - 13 = 4*k, 6*k - 5*k + 2*q = -1 for k.

-3

Solve 5 + 1 = -g + 5*j, -4*j = -g - 5 for g.

-1

Solve -2*f + m - 6*m - 21 = 0, -5*f = 2*m for f.

2

Solve a - 3*n + 12 = -a, -a + 4*n = 11 for a.

-3

Solve 2*l = -5*u - 5 + 17, 3*l = 3*u - 3 for l.

1

Solve -2*n - 3*u + 2 = -1, 18 = -2*n + 4*u for n.

-3

Solve -z = n + 3*z - 25, 35 = 3*n + 4*z for n.

5

Solve 0 = -5*p + 4*n - 10, 71*n - 70*n - 2 = p for p.

-2

Solve -2*d = 5*z + 31, 2*d = -158*z + 161*z + 9 for d.

-3

Solve 0 = -3*a + 4*l + 6, -2*a + 3*a + 4*l - 2 = 0 for a.

2