Suppose 0 = t + 2*t - 21. Suppose 11*k - 20 = t*k. Solve -u - 16 = -k*u for u.

4

Let a be (-2)/8 - 18/(-8). Suppose 0 = -3*o - 1 + 7. Suppose -3*r + 19 = -n + a*n, -2*n = -o*r - 46. Solve 0 = 5*j + n + 3 for j.

-5

Let c = 7 - -2. Solve g + 2*g = -c for g.

-3

Let q = -1 + 4. Let d = -3 + q. Solve d = -4*x + 4 - 8 for x.

-1

Let s(k) = -4*k + 9. Let b be s(-5). Let o = -7 + 11. Solve -o*g + b = 9 for g.

5

Let z(m) = m + 22. Let a be z(-10). Solve -2*h = h - a for h.

4

Let q = -21 + 12. Let o = q + 13. Solve -3*r + o = 10 for r.

-2

Let x© be the second derivative of -c5⁄20 - c4⁄6 + c**3⁄3 - 3*c. Let o be x(-3). Solve o = t - 2*t for t.

-3

Let j be ((-1)/(-2))/(1⁄2). Let s = 2 + j. Solve s*z - 2 = z for z.

1

Let g(y) = -y**2 + 17*y. Let k(t) = -t. Let l(v) = -g(v) - 6*k(v). Let b be l(11). Solve 0 = c - b*c - 4 for c.

4