Let v(c) be the second derivative of -1/6*c**3 + 1/20*c**5 + 3*c + 1/4*c**4 + 0 - 1/2*c**2. Let m be v(-3). Solve -m*r - 20 = 3*r for r.

Let f be ²⁄₈ - (-2)/(-8). Suppose 6*n - n - 10 = f. Suppose 3*g = n*g. Solve -2*r + 0*r + 10 = g for r.

5

Let i = 53 - 53. Solve o + i*o = -4 for o.

-4

Suppose 0 = 17*i - 8*i - 180. Solve 4*f + i = -f for f.

-4

Let x(q) = q3 + 4*q2 + q + 3. Let f be x(-3). Let p® = -r + 5. Let v = -6 + 11. Let d be p(v). Solve 0*y + 3*y + f = d for y.

-3

Let a(q) = -q + 3. Let r be a(3). Let s be ⁶⁶⁄₂ + (-2 - r). Suppose s = 4*m + 11. Solve -m*n + 0*n + 10 = 0 for n.

2

Let q be ¹⁰⁄₁₄ + (-8)/(-28). Solve -2 = u + q for u.

-3

Let d be ²⁰⁄₁₂ + 1 + (-1)/(-3). Solve -n = d*n + 20 for n.

-5

Let l(x) = -5*x - 15. Let p be l(-3). Solve -v + 2 + 3 = p for v.

5

Let i be ¹⁰⁄₄₅ + 130/(-18). Let y = i - -4. Let u be 8/y*(-18)/8. Solve -5*z = 19 + u for z.

-5

Let k(s) = -s + 3. Let l be k(3). Suppose 0 = -l*a - 5*a + 20. Suppose 2*t = -0 + a. Solve -1 = -c - t for c.

-1