Solve 2*r + 19 = 2*y - r, 0 = -5*y - 5*r - 15 for y.

2

Solve -3*s + x = 14, 4*s - 5*x + 15 = 11 for s.

-6

Solve 4*f = -4*s - 28, 287 - 262 = -3*s - 5*f for s.

-5

Solve 0 = 9*n - 4*n + 3*k - 14, 5*n + 2*k - 16 = 0 for n.

4

Solve 5*k - 1 = c, 50*c = 55*c - 2*k + 5 for c.

-1

Solve -b + 11 = 2*x - 3, -5*b + 20 = 0 for x.

5

Solve 3*j = -4*d - 7, 449*j - 446*j = -d - 4 for d.

-1

Solve -2*v + 3*h - 17 = -19, -3*v - 2*h - 10 = 0 for v.

-2

Solve 2*y - 2*v - 6 = 0, -2 - 7 = 5*y + 3*v for y.

0

Solve r - 5 = 2*k, -4*r = -3 - 9 for k.

-1