Solve 4*f + 12 = -4*x, 30*f + 5 = 35*f - 5*x for f.

-1

Solve 5*z - 11*t + 14*t + 14 = 0, -z = 2*t for z.

-4

Solve 3*f = 2*t - 15, 5*t + f - 15 = 4*f for t.

0

Solve -3*o = -2*k + 11, -5*o - 16 - 2 = -3*k for k.

1

Solve 0 = 3*u - 3*r, 4*r = -3*u - u + 40 for u.

5

Solve -3*x + 5*a = -14, 5*x + 14 = -0*a - a for x.

-2

Solve a - 4*a = -5*h, -4*h = 3*a + 27 for a.

-5

Solve -3*y + 19*s = 16*s + 3, y = -5*s + 17 for y.

2

Solve 0 = 3*h - 3, 5*p + 6 = -5*h - 4 for p.

-3

Solve 0 = -5*o - 3*r - 24, -3*o - 5*r + 3 = -9*r for o.

-3