Solve 0 = 3*x - 4*h - 19, -4*x - 5*h - 21 = -5*x for x.

1

Solve 25*d - 23*d = -3*o - 3, 4*d + 17 = 5*o for d.

-3

Solve 0 = 3*n - 6*q + 5*q - 10, -4*n + 5*q + 28 = 0 for n.

2

Solve -9*n - k = -13*n - 2, 5*n - 2*k + 7 = 0 for n.

1

Solve 0 = 4*q - 4*l + 8, 8*l = 4*q + 11*l + 8 for q.

-2

Solve -28 = -2*b - 4*q, 5*q - 6 = 19 for b.

4

Solve 0 = -4*a + 4*d + 16, -2*a + 0*a + 7 = -3*d for a.

5

Solve -4*z = 5*g, -3*g + 17*z - 21*z = -8 for g.

-4

Solve -2*f + 3*b = 2*b + 1, -3*f = -b for f.

1

Solve 4*q + 9*a - 14*a = 27, -2*a = 2*q for q.

3