Let p = -4 - -19. Solve k = -4*k + p for k.

3

Let i(j) = j3 + 3*j2 - 4*j - 3. Let d be i(-4). Let p be -5 - d - 10/(-1). Suppose -y = y - p. Solve 20 = z + y*z for z.

4

Let i® be the first derivative of r4⁄4 + 2*r3⁄3 - r**2⁄2 - 4. Let s be i(1). Solve -3 = -s*c - 7 for c.

-2

Suppose -16 = 4*d, 0 = 9*t - 4*t - 5*d - 70. Suppose -4*n + 21 = -3*w + 2*w, 2*w - t = -5*n. Solve -n*v = v for v.

0

Suppose 5*h = -5*i + 25, 4*h - i = -0*h + 20. Suppose 30 = 2*u - 4*z, 0*u + h*z = -u - 20. Suppose 8 = -0*j - j + u*y, y + 6 = 4*j. Solve 2 = -f + j*f for f.

2

Let c = -4 + 10. Let j be (-6)/4*8/(-6). Solve j*w + 0*w = c for w.

3

Suppose -3*i + 2*i = -4. Suppose -i*t + 2*t = -g - 8, -3*t = 4*g - 34. Solve 0 = -t*x + x for x.

0

Let l(a) = -2*a3 - 2*a2 + 2*a + 1. Let y be l(-2). Let f = 5 - 8. Let m = y + f. Solve m*u = -3*u + 25 for u.

5

Suppose 0 = -w + 3 - 0. Let i(l) = 2*l**2 - 6*l + 2. Let o be i(4). Solve -w*c - o = -c for c.

-5

Suppose 4*m - 7 - 1 = 0. Suppose -m*c = -d - 4*c + 4, c = 2*d - 3. Suppose 0*q = d*q - 8. Solve -q*p = 15 + 1 for p.

-4