Let m be (1 - -1) + 3 + 1. Let u = m - 3. Solve -a - u = -2 for a.

Suppose 3*y - m - 12 = -4*m, -2 = y + 3*m. Let l(w) = -w**2 - 3 + 8 + 2*w + 4*w. Let o be l(6). Solve 3*v - y - o = 0 for v.

4

Let o(i) be the second derivative of i⁴⁄₁₂ - 2*i³⁄₃ - 4*i**2 + 4*i. Let u be o(6). Suppose -5*c + u*r = -15, -4*c + 5*r + 10 = c. Solve -5 - c = 4*s for s.

-3

Let h(v) = -v3 + v2 + v + 5. Let b be h(0). Suppose 2*u = b*u - 9. Solve -u*d = d + 12 for d.

-3

Let u = -1 + 7. Suppose -2 + 3 = f - 3*x, 4*f - 17 = -x. Suppose 7 = -f*q + 23. Solve 2*v + q = u*v for v.

1

Suppose -6*n + 13*n = 14. Solve 0 = n*f - 7*f - 25 for f.

-5

Suppose -12 = -0*l - 4*l. Suppose -5*u = -l - 12. Solve u = -2*n - n for n.

-1

Let z(m) = m + 7. Let w be z(-5). Suppose 12 = w*l - 2*r + r, 0 = -4*r. Solve -4*t = -2*t + l for t.

-3

Let z© = c**2 - 15*c - 27. Let m be z(17). Solve 5*d + m = -8 for d.

-3

Let m be ¹⁸⁷⁄₇ - 10/(-35). Solve m - 7 = -4*s for s.

-5

Let c be 1*-2*2/(-2). Suppose -k + 9 = c*k. Solve -k*l + 5*l = 8 for l.

4