Let d = -7 - -9. Let x be 6⁄4 + d/4. Suppose 8 = x*y + 2*z, 5*z = 7*y - 3*y - 7. Solve -y*l = -l for l.

0

Let z(u) = u3 + u2 + u + 2. Let k be z(0). Let w be k/10 + 76⁄20. Suppose 0 = w*o + o. Solve o = -0*q + q - 4 for q.

4

Let h be (4/(-4))/(4/(-28)). Suppose 4*y - 19 = -h. Solve -d - 8 = y*d for d.

-2

Let b(z) be the first derivative of z4⁄4 + z3⁄3 - z*2⁄2 - z - 1. Let l be b(0). Let k be (1 + 0)(l - -1). Solve -x + k*x + 3 = 0 for x.

3

Let h = -7 + 10. Suppose -v = h*v - 28. Suppose 0 = 2*n - 1 - v. Solve o + 3 = n for o.

1

Let p = 6 + -4. Let h be 4/p + 2⁄2. Solve -h*c = -0*c - 9 for c.

3

Suppose 7 = -n + 2*n. Suppose n = 4*z - 5. Suppose 6*a + z = k + 5*a, 4*k - 5 = -3*a. Solve 8 + 2 = -k*r for r.

-5

Let f(y) = -y**2 + 4*y + 8. Let r be f(6). Let v be r/(-10) - (-3)/5. Solve 1 + v = -b for b.

-2

Suppose 4*n + 4*x + 4 = 0, -x + 10 = 5*n + x. Solve 5*a = -n + 9 for a.

1

Suppose 0 = -3*w - 0*z - z + 6, 0 = -3*z. Suppose j + 4*d - 11 = 0, 5*j + w*d - 36 = d. Solve -8 = -5*u + j for u.

3