Solve 0 = -3*z + 4*d - 4, -5*z + 2*d - d - 18 = 0 for z.

-4

Solve j + 3*m - 5 = -11, 0 = -2*j + m + 9 for j.

3

Solve 81*q - 84*q - 15 = -5*v, v = -3*q + 3 for q.

0

Solve 6 = 2*b - 4*q, -4*b + 5*q = b + 5 for b.

-5

Solve 5*u + 4 = -2*i - 14, 3*i - 3*u + 6 = 0 for i.

-4

Solve -3*a - 22 = -2*u, -2*u + 7*a + 14 = 6*a for u.

5

Solve -5*c + 13 = -3*j, 138*j - 4 = 137*j for c.

5

Solve 5*i + 5*v = 0, 2*i + 3*v + 5 = -0 for i.

5

Solve 3*n = 5*x + 13, 0*x + 9 = -4*x + n for x.

-2

Solve 4*x - 3*r + 9 = 0, 5*x - 2*r + 0*r = -6 for x.

0