Solve -4*z + q - 7 = 0, -z + 5*q - 6*q - 3 = 0 for z.

-2

Solve -4*r - 11*g = -12*g + 28, 5*r + 2*g = -22 for r.

-6

Solve v - 5*x = -8, -v + 49*x - 45*x - 6 = 0 for v.

2

Solve 5*l - o - 18 = 2*l, l = -o + 2 for l.

5

Solve -2*f - 3*g = 82 - 75, -4*f - 2*g = 2 for f.

1

Solve n + 21 = 5*f, 67*f - 64*f = -4*n + 31 for f.

5

Solve -3*u - 2*l = -9, 2*u + 8*l = 4*l + 6 for u.

3

Solve 4*z = -3*n + 16 + 4, 4*n = 2*z + 12 for z.

2

Solve 0 = 22*r - 26*r + 4*t - 12, 0 = -5*r - 2*t - 1 for r.

-1

Solve -5*m - k = -22, -m - 10 = 4*k - 3 for m.

5