Let l = 7 - 1. Let u be (-4)/7*(-21)/l. Solve -u*r = 3 + 5 for r.

-4

Suppose -5*s + 0*s + 15 = 0. Suppose 0 = -u - s*u. Let p = u - -2. Solve 2*x + 12 = -p*x for x.

-3

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

-3

Let o = 113 - 73. Suppose -c - o = -3*c. Solve 0*b + 5*b = c for b.

4

Let i(v) = -v**2 - 7*v + 21. Let o be i(-9). Solve o = -3*j - 0 for j.

-1

Let j(l) = 2*l**2 - 11*l - 1. Let y be j(6). Solve v = 3 - y for v.

-2

Let a(p) = p + 15. Let z be a(-7). Let d be (4⁄3)/((-2)/9). Let t = d + z. Solve -i = -t*i for i.

0

Suppose -5*n + 15 = 5*i, 4*i + i = -n + 23. Suppose 5 = -5*y + 5*x, 0*y - 2*y = i*x - 19. Solve 0 = -y*g - 0 + 2 for g.

1

Suppose -b - 23 = -23. Solve -d = -b + 2 for d.

-2

Let r(d) = -d3 - 11*d2 + 11*d - 9. Let i be r(-12). Solve 2*f - i*f = 4 for f.

-4