Let w be -1 + -2 - (-2 - -4). Let a(b) = -2*b + 5. Let n be a(w). Solve 5*q + 10 + n = 0 for q.

-5

Let y = -13 + 20. Let s = -70 - -74. Solve s*k = 5 + y for k.

3

Let z® = -r2 + 5*r - 1. Let s be z(6). Let n(k) = k2 + 7*k + 5. Let b be n(s). Let t(j) = -j**2 + 7*j + 2. Let a be t(b). Solve 2*o + o - a = 0 for o.

4

Let s(n) = 2*n - 9. Let z be s(6). Suppose 5*j = z*j + 4. Suppose k + j = 5. Solve -k*d + 0*d = -9 for d.

3

Suppose -2*s - 5 = -5*d + 3*s, 15 = -3*s. Let z(i) = -i + 3. Let b be z(d). Suppose b*o - 3*o - 43 = k, 4*k + 62 = 5*o. Solve -5*m - o + 0 = 0 for m.

-2

Suppose 2*v = -5*t - 12 - 3, -4*v - 2*t + 10 = 0. Suppose 0*p + 15 = v*p. Solve p + 3 = 2*c for c.

3

Let p = 32 - 17. Let s = -12 + p. Solve 2*r + 1 - s = 0 for r.

1

Suppose 0 = 3*m + m. Solve -k - k = m for k.

0

Suppose -3*c + 16 = -7*c. Let t = 4 + c. Suppose t = 2*n + 3*n. Solve n = a + 3*a - 8 for a.

2

Let l = 6 - 4. Solve -1 - l = -v for v.

3