Let r(d) be the first derivative of d**4/4 - 2*d**3 + 4*d**2 - 7*d - 3. Let o be r(5). Solve -o = -2*j - 0*j for j.

Let a(z) = 5*z - 10. Let k be a(7). Solve 0*x + k = 5*x for x.

5

Let p be (-20)/6*(-12)/10. Suppose u = -5*o - 2*u + 21, 2*o = 5*u - p. Solve 4*i + 4 = o*i for i.

-4

Suppose -3*s - 14 + 50 = 0. Suppose -s + 0 = -3*o. Suppose 4*z + 6 = -z - 3*a, o*z = 2*a + 4. Solve z*m = -m + 4 for m.

4

Let h(d) = -d3 - d2. Suppose 8*i = 4*i. Let v be h(i). Suppose -8 + 0 = -4*a. Solve v = 2*p + a*p for p.

0

Let z = -18 + 43. Suppose 2*a = 7*a - z. Solve 3*y + a = 14 for y.

3

Suppose 2*t = 5*p - 9, -3*t - 5 = -p - 24. Let z be ((-12)/t)/(1/(-2)). Solve 0*x - 6 = z*x for x.

-2

Let c be ⁵⁴⁄₁₅ + ⁶⁄₁₅. Suppose c*j = 4*m, 0 = m - 2*m. Suppose j = 4*s - 7 - 1. Solve -s = -2*h + 4 for h.

3

Let r© = c3 + 7*c2 - c - 7. Let g be r(-6). Let b be (-3)/(-4) - g/4. Let n be b/5*(-35)/14. Solve -n*u = -u - 3 for u.

1

Let h = -12 + 24. Suppose -5*f - 26 + 4 = -t, 2*t + 4*f = -h. Let r be t*³⁄₁₂*10. Solve -14 = -r*a + 6 for a.

4

Suppose 3*s + 19 = 4*m, -2*s + 7 = 3*m + 3*s. Let c = -3 - -5. Let n be 16/(1/c*2). Solve 0*h = -m*h + n for h.

4