Solve 2*t = -5*d + 6*d - 1, 6 = 2*d - 2*t for d.

5

Solve z + 1 = -c - 2, z = -2*c - 1 for c.

2

Solve -5*r + 3*t = 18, 4*t = 2*r - 2 + 12 for r.

-3

Solve 2*m - 2*q = -6, 3*m - 6 - 20 = -4*q for m.

2

Solve -2*f = 3*i - 9, -7*f = -11*f for i.

3

Solve 2*f + 5 = -3*w, -3*w + 4*f + 1 = -0 for w.

-1

Solve 3*y - 15 = -2*z + 10, 5*z = 5*y for y.

5

Solve -2*j = -3*j + d + 5, 3*j + 2*d = 15 for j.

5

Solve -28 = -4*f + 2*d, 51*f + 3*d = 56*f - 37 for f.

5

Solve u + 15 = -4*g, 2*u + 2*u - 40 = 4*g for u.

5