Let r(a) = 6*a**3 + a**2 - 2*a + 2. Let n be r(1). Suppose -n*k - 4 = -9*k. Solve k*o + 4 = 4*o for o.

Let l be 3/(6/(-4)) - -13. Let y = -7 + l. Let r be ²⁰⁄₆ - y/12. Solve -r*k = -k - 10 for k.

5

Let l(v) = -v**2 + 6*v - 1. Let b be l(5). Suppose -160 = -b*u - 60. Solve -3*a - 2*a = -u for a.

5

Suppose -5*d + i + 25 = -0*d, 2*d = -4*i - 12. Let a = d - 2. Solve a*y = y for y.

0

Let d = 8 + -3. Suppose d*i = 2*i. Suppose 5*x - 7 - 6 = 2*j, 2*x - 4 = 2*j. Solve -x*r + 8*r = i for r.

0

Let m = -2 + 1. Let u be (0 + 2/(-1))*m. Solve -u*r - 12 = -4 for r.

-4

Let j(z) = z3 - 3*z2 - 4z - 1. Let w be j(4). Let h be -10(-4 + w + 3). Solve 0 = -y - 3*y - h for y.

-5

Let g = 55 - 55. Solve g = -0*j - 4*j + 12 for j.

3

Suppose 2*f - f = 0. Suppose -j - 7 = -0*m - 3*m, f = -4*m - 2*j + 6. Solve y - 2*y - m = 0 for y.

-2

Let i(u) be the third derivative of -u⁵⁄₆₀ - 7*u⁴⁄₂₄ - 7*u³⁄₆ + 7*u2. Let w be i(-4). Solve -20 = -w*v - 0*v for v.

4

Let y(l) = -l**2 - 6*l + 2. Let v be y(-6). Solve -3*z = -v*z + 4 for z.

-4