Suppose 3*h - 12 = -6*w + w, -h + 8 = 3*w. Let p be (-17)/(-5) - 2⁄5. Let x be 19/p + (-2)/6. Solve -w*a + 12 = -x*a for a.

-4

Let x(i) = i3 + 17*i2 + i + 22. Let y be x(-17). Suppose 45 = y*f - 5. Solve 3*j + 2*j - f = 0 for j.

2

Let c be (90⁄12)/((-3)/(-4)). Solve -6*k + c = -k for k.

2

Suppose -15*b = -13*b. Let x(u) = -u**2 + 11*u - 3. Let v be x(10). Solve b = -i - 4 + v for i.

3

Suppose 9 = -t + 4*y - 3, -t - 2*y = -12. Suppose -4*f - 26 = 42. Let n = f - -24. Solve -t*m + 9 + n = 0 for m.

4

Suppose -3*v - 21 = -3*y, -v - 22 = -0*y - 4*y. Suppose 5*t - 539 = n, 0 = -y*n + 1 + 4. Suppose -4*q + 0*q = -t. Solve 5*s - q + 2 = 0 for s.

5

Let x® = -4*r. Let a be x(-1). Suppose -c - 6 + 4 = a*m, 0 = -4*c + 5*m + 34. Solve -n - 1 = -c for n.

5

Let k(w) be the second derivative of -1⁄12*w4 + 0 + 7⁄2*w2 + w + 2⁄3*w**3. Let x be k(5). Solve -x*u = 1 + 5 for u.

-3

Let u(h) = h**2 - 1. Let a be u(-3). Solve -2*z = -0*z - a for z.

4

Let z(o) = -3*o**3 + 2*o + 1. Let g be z(-1). Suppose -g*m = -5*m + 6. Suppose -4*q - 4*h = 0, -10 = 2*h - m. Solve q*s = -s + 15 for s.

3