Let a(i) = -i - 2. Let l be a(-2). Let f = l - 0. Solve f = r + 3*r + 12 for r.

Let z be (13 + -5)*¹⁄₄. Solve -h = -z - 3 for h.

5

Let w(i) = -3*i - 4. Let d(o) = 5*o + 7. Let a(u) = 4*d(u) + 7*w(u). Let g be a(1). Let x be 0 - g - (-10 + 5). Solve -y - 20 = -x*y for y.

4

Let f(x) be the second derivative of -x⁵⁄₂₀ - x⁴⁄₄ - x³⁄₂ - 5*x. Let u(m) = -m2 + m - 1. Let v be u(2). Let r be f(v). Solve -5*d + 1 = -r for d.

2

Let n = -22 - -22. Let q = 4 - n. Solve q*u + 8 - 28 = 0 for u.

5

Suppose -4*h + 50 = 2*g, -g - 41 = -3*h + g. Solve 4*s = -h - 3 for s.

-4

Suppose u = 5*v - 3*u + 29, -2*v - 2*u - 8 = 0. Let a = v + 13. Solve -3*p = -a*p + 10 for p.

2

Suppose 2*s - 3*d = -2*s - 42, d = -3*s - 25. Let j be (-120)/s - 4/(-6). Suppose -4*o = 5*v - 90, -4*v - j - 58 = -4*o. Solve -8*a + o = -3*a for a.

4

Suppose 2 = 2*o - 10. Suppose -n + p + 16 = 0, -2*p = 2*n - 11 - 5. Solve o*q = 3*q - n for q.

-4

Let n be ((-198)/55)/(2/(-5)). Solve -4*s - 20 = -n*s for s.

4

Let h be (-1480)/(-18) - (-2)/(-9). Let b = -55 + h. Let s = -11 - -15. Solve -s*i + 11 = b for i.

-4