Solve 2*u - 1 = a, -3*u = 3*a + 1 - 7 for u.

1

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

-2

Solve 2*z + 2*o = 3*o - 5, -5*z - 11 = -3*o for z.

-4

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

0

Solve 3*u - 5*p = -22 - 10, 0 = -2*u - p - 4 for u.

-4

Solve -4*q = 5*a + 20, -7*q + 2*q = 0 for a.

-4

Solve 5*u = 7*u + s - 10, 2*u - 4*s = -20 for u.

2

Solve 157*l - 156*l - 4*v + 2 = 0, -l + 7 = 5*v for l.

2

Solve 0 = 90*y - 89*y + f - 5, -19 = y - 3*f for y.

-1

Solve 3*l = 6, 5*r = 2*l + l - 26 for r.

-4