Suppose 9*z - 39 = -4*z. Solve -8 = -u - z*u for u.

2

Let c = 3 - 4. Let x(u) be the second derivative of u4⁄12 + u3⁄6 + u**2⁄2 - 2*u. Let r be x©. Solve -i + 2 = -r for i.

3

Let h(d) = d - 6. Let i be -3*8/(-6) + -2. Suppose -5*m = -3*z - 34, 4*z - i*z + 28 = 4*m. Let k be h(m). Solve 3 = -k*r - 1 for r.

-2

Suppose j - 14 = -j. Let w(u) be the third derivative of u4⁄24 - u3 + 7*u**2. Let p be w(j). Solve 0 = -5*f + 4*f - p for f.

-1

Suppose 2*r = 6*r - k - 12, 2*r - 5*k = 24. Suppose 5*u = 6*u - r. Let o = u + 1. Solve -3 = o*c - 2*c for c.

-3

Suppose -27*t + 24*t = 0. Solve t = s - 14 + 15 for s.

-1

Let b® = 2*r - 6. Let q be b(5). Suppose 3*j + 0*s + 2*s - 37 = 0, 5*s - 55 = -5*j. Suppose -4*x + j = x. Solve l + q = x*l for l.

2

Let i be 165⁄12 - (-1)/4. Suppose i = 3*f + 2*f - 4*l, l + 11 = 5*f. Solve -f*y = -4 - 4 for y.

4

Suppose 0 = 2*b + 7 - 13. Suppose 2*h = h - 4*l + 14, -3*h = b*l - 15. Suppose 4*f + 0 = 4. Solve c + f = h*c for c.

1

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

3