Let r(k) be the second derivative of k**5/20 - k**4/2 + k**3 - 5*k**2/2 + 3*k. Let j be r(5). Let h = 7 - 2. Solve j = -h*a - 7 - 13 for a.

Let j(u) = -u**2 + 7u + 4. Let y be (-1 + -1)-5 + -3. Let z be j(y). Solve -z*f = f + 20 for f.

-4

Let q = 2 - 0. Suppose 12 = 3*n, -q = 5*v + 2*n - 60. Solve 10*m - v = 5*m for m.

2

Let a(p) = p + 5. Let y be a(-3). Let r = 0 + y. Suppose r*v - 20 = -3*v. Solve -2 = 2*t + v for t.

-3

Suppose -4*w + 42 = -w. Let g be ²²⁄₄ - 7/w. Solve 5*u + g = -5 for u.

-2

Suppose 4*o = 2*f + 62, 0 = 3*f + 2*f - 25. Suppose 0 = -m - 6*q + q + o, 4*m = q + 30. Solve -b + 5*b - m = 0 for b.

2

Suppose -5*w + 2 - 37 = -2*k, 3*w + 97 = 5*k. Solve -u = 3*u + k for u.

-5

Let y(t) = -2*t3 + 6*t2 + t + 2. Let r be y(3). Solve -9 = r*p - 2*p for p.

-3

Suppose 0 = 136*w - 141*w + 30. Solve w = 3*z - 3 for z.

3

Let n(q) = q**2 + 5*q - 10. Let g be n(-7). Solve 0*x - 2*x = -g for x.

2

Suppose 1 = k - 5. Solve -2*i - k + 2 = 0 for i.

-2