Solve -15 = a - 4*r + 4, -9 = -4*a - r for a.

1

Solve 5*i + 10 = 3*y - 0*i, -4*y - 5*i + 25 = 0 for y.

5

Solve -3*i + 17 + 20 = -5*k, 3*k = i - 19 for i.

4

Solve 2*l - 5 = -4*f + l, -3*f + 15 = 3*l for f.

0

Solve 0 = 2*a - 2*i - 2, -2*a = 3*i - 9 - 13 for a.

5

Solve -o = -16 + 14, 6 = 2*k + o for k.

2

Solve 0 = 4*h + 2*b, -3*b = 3*h + 2*b + 7 for h.

1

Solve -3*h - 2 = 2*x - 6, 4*x = 5*h - 36 for x.

-4

Solve 2*x = 6, 0*x + 9 = -3*f + 4*x for f.

1

Solve x - 6*x = 15, -4*w - 4*x + 4 = 0 for w.

4