Let a = 140 + -140. Solve a = -4*k - 4 for k.

Suppose 13*f = 20 - 7. Solve -3*t - f = -7 for t.

2

Let p be -1 + 0 + 1 - -3. Suppose -p*q + 5*k = -14 - 15, -k = 4*q - 8. Solve q*d = 4 + 5 for d.

3

Let a(v) = 0*v + v - 4*v3 + 5*v2 + 3*v**3. Let y be a(5). Solve -2*z + y*z = -6 for z.

-2

Let b(l) = -l**2 + 10*l - 7. Let o be b(9). Solve 3*m = -o + 5 for m.

1

Let h = 0 + 3. Suppose w - 4 = -h*o - w, 2*w = -o + 8. Let v = o + 3. Solve -1 = -2*c + v for c.

1

Let p® be the second derivative of r⁵⁄₁₂₀ + 7*r⁴⁄₂₄ - r**³⁄₃ + 3*r. Let z(g) be the second derivative of p(g). Let n be z(-5). Solve -n = w + 3 for w.

-5

Let u be (-1 + 4 + -7)/(-2). Solve -2 = -s + u for s.

4

Let m(a) = a + 2*a - 2*a + a**2 - 2*a. Let s be m(1). Suppose s = 2*u - 2 - 14. Solve b + b = -u for b.

-4

Let h(d) = -d**2 - 19*d - 13. Let o be h(-18). Solve -c = -o*c + 4 for c.

1

Let x = 13 - 1. Let s(z) = -3*z2 + 14*z + 2. Let w(q) = -10*q2 + 43*q + 7. Let n© = -7*s© + 2*w©. Let k be n(x). Solve 3 = -k*b + b for b.

3