Solve -5*a = 2*i - 9, -i - 4*i - 21 = -2*a for a.

3

Solve 4*y + 4*o - 16 = 0, -y - 14 = 5*o - 10*o for y.

1

Solve 0*q + 5*q - 21 = -2*b, 2*b - 3 = q for b.

3

Solve a = -l + 6, 4*l + 2*a = 7*l + 2 for l.

2

Solve k + q + 8 = 0, -4*k - 8*q - 37 = -3*q for k.

-3

Solve 3*c - 10 = -2*t - 8, 4*t = 3*c + 4 for c.

0

Solve -5*a + 19 = 3*s, -2*a = -111*s + 115*s - 16 for a.

2

Solve -2*d + 2*n = -4, 2*n - 5 = -d + 4*n for d.

-1

Solve 0 = -2*t - 2*z + 6, 0 = -3*t + z - 5 + 10 for t.

2

Solve -9 = -h + 2*b, 5*h + 2*b + 18 - 3 = 0 for h.

-1