Suppose 2*x = 4*u - 3*x + 9, 4*u - 4*x + 12 = 0. Let b(h) = 2*h + 14. Let t be b(u). Solve 0 = t*w - 3 + 13 for w.

-5

Suppose 2*s = -3*a + 33, -4*a + 5*s + 30 = a. Solve 4*c = a + 7 for c.

4

Let j = -9 + 9. Solve -r - 4 = -j*r for r.

-4

Let c(k) = -k**2 + 5*k + 1. Let n be c(4). Solve 13 - n = -4*r for r.

-2

Let o be (-6)/(-12) - 3/(-2). Suppose d = 3*d. Suppose -u - 2*u + 4*c + 4 = d, -2*c = u + o. Solve -20 = -u*x - 4*x for x.

5

Suppose -3*b + 4*b - 28 = 0. Suppose g - 17 = -5*t, -4*t + b = g - 5*g. Solve -t*u = u - 15 for u.

3

Suppose -3*b + 4*w - 5 = 0, 3*b - 2*w - 5 = -0. Solve -b*r + 6 - 1 = 0 for r.

1

Let w(u) be the second derivative of u5⁄20 - u3⁄6 + u**2 - u. Let g be w(0). Solve 0 = -g*t + 4 - 0 for t.

2

Let k© = 7*c**2 - 2*c + 3. Let s be k(2). Let l = s + -11. Solve -5*i = -i - l for i.

4

Let i(d) = 3*d**2 + 20*d - 5. Let m be i(-7). Suppose 15 = -3*x - 3*z, 3*x = x - z - 5. Suppose x*h = -3*u - 4*h + 1, -2*u = -2*h - 10. Solve y - u = m*y for y.

-3