Let d(z) = -z**2 - 4*z + 9. Let n(u) = -1. Let s(l) = -d(l) - 4*n(l). Let c be s(-4). Let x = c + 9. Solve -x*i - 2 + 10 = 0 for i.

Let t be (-18)/8*(-80)/(-30). Let h = t + 14. Solve 4*u + h = 2*u for u.

-4

Suppose -2*h + 4*h - 5*k + 12 = 0, 4*k + 4 = 5*h. Let p(j) = -j**2 - 9j + 11. Let x be p(-10). Let f be -3(-1 + x + -3). Solve f = -n + h*n for n.

3

Let m(t) be the second derivative of -t⁵⁄₂₀ + t⁴⁄₃ - t³⁄₆ - 3*t²⁄₂ - t. Let v be m(3). Solve 0 = 4*f - v*f + 2 for f.

-2

Let r = 10 - 5. Suppose -3*k = -2*n - 8, -2*n - 13 = -4*k + 3*n. Suppose -3*o + 50 = -w, -k*o + 16 = w - 19. Solve o - r = 4*m for m.

3

Let n(b) = b**2 - 23*b + 112. Let k be n(16). Let f(d) = -2*d. Let a be f(-1). Solve k = -c - a*c + 3 for c.

1

Let l be -1 - (-41 - 1). Let g be l/(-18) + ¹⁶⁸⁄₂₇. Let w be -1(1 + -2 + 1). Solve w = -u - 1 + g for u.

5

Suppose -10 = f - 4*o, 5*o + 5 = f + 19. Solve -2*u - 4 = -f*u for u.

1

Let t® = -2*r + 1. Let n be t(-3). Suppose -3*s = -s - q - n, 2*s - 2*q - 12 = 0. Suppose 4 = -z - 2*f, -2*z + 21 - s = -3*f. Solve -m = z*m - 15 for m.

3

Let a = 24 + -22. Solve a*m + 8 = -0 for m.

-4

Let v be -1*(-2)/2 + 1. Let q be 2/v*22 + 1. Suppose 0 = -4*c - c + 15. Solve 4*n + c = q for n.

5