Solve 4*a - 1 = -2*m + 9, 3*m - 4 = 5*a for a.

1

Solve -1 = u + 5*z + 19, -2*z + 5 = 3*u for u.

5

Solve t = -5, 4*f + 0*t - 10 = 2*t for f.

0

Solve 4*u = -7*r + 2*r - 21, 2*r + 8 = -2*u for u.

1

Solve 4*u = -26*c + 21*c, u = c + 9 for u.

5

Solve 0 = 6*g + 8*v - 4*v - 12, -2 = -g + v for g.

2

Solve 6*s - 7*s + q + 3 = 0, -2*s + 12 = -3*q for s.

-3

Solve -3*u - 5*b - 25 = 0, 8*u - 13*u = 5*b + 35 for u.

-5

Solve 2*w - 5 = 5*n, 3*w - n + 5 = -6*n for w.

0

Solve f + v + 7 = 0, 3 = -5*v - 22 for f.

-2