Suppose -4*d + 12 = 0, 4*s - 2*d = 3*d - 11. Let t = -16 + 15. Let n be (t/s)/((-1)/2). Solve r + n*r = 0 for r.

0

Let b(i) = -i + 1. Let a be b(0). Let n be (3 - 2)*1 - a. Let l(j) = -j3 + 7*j2 - 6*j + 5. Let p be l(6). Solve -p*z - 5 = -n*z for z.

-1

Suppose -3*j - 2*j - 15 = 0, -4*x + 13 = j. Let s(i) = -i3 + 8*i2 - 8*i + 8. Let c be s(7). Let h = -1 + c. Solve h*n + 4*n = -x for n.

-1

Suppose 2*t + 0 + 2 = 0, 3*q + 2*t = -2. Suppose q = -p + b - 2*b + 2, -12 = -4*b. Let z be (0 + p)/((-6)/18). Solve z*v - 1 = 4*v for v.

-1

Let q be 9 - 13 - -1*7. Solve q*l = -l for l.

0

Let o = -38 - -50. Solve -7*f - o = -4*f for f.

-4

Suppose 2*i + 3*k = 12, 0 = -2*i - k + 2 + 10. Suppose f = 2f - 1. Let t be (2 - f)(4 + -1). Solve i + 0 = t*h for h.

2

Suppose -7*x + 399 = -3*x - 5*g, 2*x = -4*g + 180. Let l be x/(-4)*2/(-4). Solve 3*n + l = -0 for n.

-4

Let v = 72 + -70. Solve 0 = -0*c - v*c + 4 for c.

2

Let w(n) be the second derivative of n3⁄3 + 2*n2 + 2*n. Let c(a) = a + 2. Let j(i) = 5*c(i) - 2*w(i). Let b be j(-2). Solve -5*k + 39 - 14 = b for k.

5