Solve 0 = y + 6, -408*y = -20*s - 413*y - 50 for s.

-1

Solve 2*r = -2*x + 2*r + 18*r - 62, r + 0*r - 1 = 0 for x.

-22

Solve -70*f + 75*f = 2*k - 29, k - 5*f = 27 for k.

2

Solve 6*x = -4*x - h + 21, 0 = -94*x + 98*x - h + 21 for x.

0

Solve -z = 3*q - 30, 25*z + q = 28*z - 80 for z.

27

Solve 4*w = 5*b + 72, 5*w - 3*w + 10*b = w + 18 for w.

18

Solve 520*h = 515*h + 4*x + 17, -2*x = 2*h - 14 for h.

5

Solve 8*u + 9*b = 5*u + 6*b - 21, 3*u - 4*b = -35 for u.

-9

Solve 4*k = -u + 251138 - 251098, 65 = -3*k + 4*u for k.

5

Solve -123*u = 4*n - 119*u - 52, 12*n + 9 - 15 = 3*u for n.

3