Solve -4*l + m = -23, -22 = -2*l - 5*m + 9*m for l.

5

Solve 25 = 5*u, 5*x + 3*u - 3 - 7 = 0 for x.

-1

Solve 79*r + 12 = -4*q + 83*r, 3*r = -4*q + 23 for q.

2

Solve h - 7 = -2*a, -5*h - 3*a = -1 - 20 for h.

3

Solve 5*x - 3*q - 5 = 0, -2*x + 5*q - 17 = -0*x for x.

4

Solve -2*i - r = -0*i + 2, -4 = -r for i.

-3

Solve 7*t + 5*l = 6*t, l = 2*t for t.

0

Solve 2*b + 3*q - 22 = -2*b, -4*b + 2*q + 12 = 0 for b.

4

Solve -4*i = -5*z + z + 20, -3*z = 2*i - 5 for z.

3

Solve 25 = -5*a, -23*g = -25*g - a - 7 for g.

-1