Solve 5*w - 15 = 5*d, 7 = 4*w - 3*d - 3 for w.

1

Solve 9*i = 8*i - 4*x - 21, 5*x = -i - 26 for i.

-1

Solve -4*g + 50*y = 51*y - 7, 0 = g + 5*y - 16 for g.

1

Solve 3*i - 2*k - 3 = 0, 0 = -4*k - 7 - 5 for i.

-1

Solve 25 = i - 5*z, z + 40 = -3*i + 35 for i.

0

Solve -d - f = -3, 3*d + 6*f - 5*f = 9 for d.

3

Solve 2*c = 3*n, -12*n - c - 79 = -25 for n.

-4

Solve -4 = 4*r - 4*c, -4*c + 48 = -5*r + 40 for r.

-4

Solve -p - 3*p = -2*m - 6, 0 = -4*m - 3*p - 1 for m.

-1

Solve 5*i - 5*f = 60, -9 = -3*i - 4*f - 36 for i.

3