Let f(i) = i + 9. Let c be f(-9). Let l(b) be the third derivative of -b**4/24 + b**3/2 - b**2. Let r be l(c). Solve -r*k - 2*k = -20 for k.

Let y be -3*(-2)/3*1. Suppose -3*r = -r - 2*f - 2, -7 = y*r + f. Let c be (2 + (-2)/r)*1. Solve c*w = w for w.

0

Suppose -2*f = f - 4*c + 12, -4*f = -c + 3. Let g(z) = z**2 + z - 1. Let o be g(2). Suppose 28 = o*y - i, -5*i = y - 4 + 14. Solve -y*l + 0*l = f for l.

0

Suppose -u = 3*u. Let f be u + 0/2 - 1. Let o = 1 + f. Solve 5 = -c - o for c.

-5

Suppose -3*l + 4*l = 4. Suppose -w - 6 = -m, -17 = -4*m - w - 13. Solve l*h - m*h = 0 for h.

0

Suppose 4*s - 15 = 1, -2*q + 2*s + 10 = 0. Let j be (3/q)/(¹⁄₉). Solve -j*h - 2*h + 15 = 0 for h.

3

Let c® = r3 + 8*r2 - 10*r - 6. Let v be c(-9). Solve -20 = -2*g - v*g for g.

4

Let j(g) = -g3 - 12*g2 + 2*g + 27. Let s be j(-12). Solve 0*w + 15 = s*w for w.

5

Let n be (²⁰⁄₄)/(1 - 0). Suppose 3*v - 10 = -n*d, 0 = -4*d - 4*v + 7 + 1. Suppose d = 2*u, u - 3 = j - 6. Solve 3*q = q - j for q.

-2

Let k(d) be the first derivative of -d⁵⁄₆₀ + 3*d⁴⁄₈ + d³⁄₃ - d2 - 2. Let z(x) be the second derivative of k(x). Let a be z(9). Solve -9 = a*l + l for l.

-3

Suppose -p + 7 = 5*q - 0, -10 = -5*p. Solve -2*v = -3*v - q for v.

-1