Let q be (-16)/(-10) - 8/(-20). Let l be (-3)/(-2) + q/(-4). Solve 3*j - 11 = l for j.

Let w = 21 + -13. Solve -3*r + 20 = -w*r for r.

-4

Suppose 4*u = 5*w + 8, -4*w = -u - 3*u + 8. Suppose -5*n + 15 + 5 = w. Suppose 3*k = -y + 20, 0 = n*y - 0*k - 4*k. Solve y*v + 5 = -20 for v.

-5

Let b(q) be the second derivative of q⁴⁄₁₂ - q³⁄₆ - q**2 + 2*q. Let v be b(3). Solve -v*u + 2*u = 4 for u.

-2

Let b = -1 - -4. Suppose -1 - 19 = -4*o. Suppose 5*r - o = -2*f, 3*r + 0 = 3. Solve f = b*a + 2*a for a.

0

Suppose q - 2*q - 43 = -2*z, 0 = 4*z + 2*q - 74. Let c = z + -18. Suppose -2*n = 2*n - 24. Solve 2*f - n - c = 0 for f.

4

Suppose 0 = -u - u + 4. Solve 5*q = u*q - 15 for q.

-5

Suppose 0 = 4*f - 3*k - 26, 2*f - 7*f = k - 23. Suppose -v + 2*v = -4*y + 5, -y + v + f = 0. Solve 0 = -0*n + y*n - 6 for n.

3

Suppose 3*s - 3*l - 12 = 0, -2*l = s - 4*s + 14. Solve -3*m + 0*m - s = 0 for m.

-2

Let w = 14 - 9. Suppose -3*n + 4*u = -0*n - 39, -n = w*u + 6. Solve 4*g - n = -25 for g.

-4

Suppose -4*m + m + 18 = 0. Suppose 3*s + s + 3*b = m, -5*s - 2 = -b. Solve s = -0*j - j + 5 for j.

5