Solve -5*c - 4*d = -4, 0 = 9*c - 7*c + d - 4 for c.

4

Solve 0 = -2*u + 5*i + 35, -22*u - 4*i = -18*u for u.

5

Solve z = -3*k + 3*z + 13, 19 = 4*k - z for k.

5

Solve 2*c + 14 = 2*t, 4*t + 37 = 2*c + 59 for t.

4

Solve 26 = 2*b + 4*r + 14, 3*r = 15 for b.

-4

Solve 0 = m - 3*q - 1, -5*m + 3*q + 5 + 0 = 0 for m.

1

Solve f = o + 5*f + 16, -2*f - 18 = -2*o for o.

4

Solve -3*t = -4*c + 8, -2*c - 5 - 5 = -5*t for t.

4

Solve 2*u - 8 = 3*y, 9*u = y + 11*u + 8 for y.

-4

Solve 0 = -5*k + 20, 4*y - 20 = -5*k + 2*k for y.

2