Solve -4 = 4*a + 8, 2*a = -4*f - 10 for f.

-1

Solve -4*u + 27 = -3*y, 5*y = -17*u + 18*u - 28 for u.

3

Solve -2*x + 1 = -s, 51*x - 4*s - 15 = 54*x for x.

-1

Solve -40*k + 10 = -37*k + 4*j, 9 = 5*k - j for k.

2

Solve -3*a + 5*x - 41 = -13, 0 = -3*a + 4*x - 23 for a.

-1

Solve 4*n = g + 21, 65*g + 26 = 5*n + 64*g for n.

5

Solve 3*y + 17 = -5*w + 37, 0 = w + y - 4 for w.

4

Solve 3 = 5*t - b - 4, 4*t - 5*b = -7 for t.

2

Solve 4*z = 4*r + 20, -4*r - 21 = 5*z - 10*z for r.

-4

Solve l = u + 6, -25 = 5*u - 3*l - 3 for u.

-2