Solve -4*x = -r + 15, 8*x + 9 = 5*x for r.

3

Solve 0*y - 4*y + 22 = 5*q, 5*q - 1 = 3*y for q.

2

Solve 2*w = 3*x, 4*x = -3*w + 2*w for x.

0

Solve 3*i - 5*z = -i - 30, 4*i = -3*z - 14 for i.

-5

Solve 0 = 3*u + 6, u - 232 + 229 = -5*q for q.

1

Solve -2*i = 3*m - 23, -5*m + 5 = -4*i - 4 for i.

4

Solve -3*b - 2*z + 13 = 0, -3*b + 5*b + 2 = 4*z for b.

3

Solve 0 = -z + 5*j + 30, 0 = 4*z - j + 2*j - 15 for z.

5

Solve 2*a + 6 = 3*r, -2*a + 12 - 6 = 0 for r.

4

Solve w = -o + 5*w - 18, w + 3 = 4*o for o.

2