Let u(k) = -k**2 + 7*k - 1. Let h be u(6). Solve 13 + 7 = -h*y for y.

-4

Let m(i) = -4*i - 2. Let r be m(-2). Solve 2*u = 5*u + r for u.

-2

Let o(l) = l3 - 4*l2 + l - 7. Let d be o(5). Suppose -s + 17 = 3*g, 5*s - d - 6 = -g. Let h = 8 - g. Solve -k + 10 = h*k for k.

2

Suppose -3*s = -2*j + 9, 4*j - s = 2*s + 9. Solve -h = -j*h + 5 for h.

-5

Let d(o) = o3 + 11*o2 + 15*o + 1. Let b be d(-10). Let z be 14/b - 23/(-7). Solve -z = -2*i + i for i.

3

Let b = -30 - -31. Solve m + 3 = b for m.

-2

Suppose -1 = -2*m + m. Let o be (2 + -5)*m - -10. Solve -o*s + 3*s = 20 for s.

-5

Let a = 39 - 31. Solve 5*z + 7 + a = 0 for z.

-3

Let y be (11 - 0)*1/(-1). Let v = y + 7. Let o be (-6)/v + 2⁄4. Solve -3*c + o*c + 4 = 0 for c.

4

Let v = 8 - 5. Solve -v*z + 2*z = -4 for z.

4