Let r be 3/(-21) + (-66)/(-21). Solve -r + 7 = w for w.

4

Let o be -3 + (0 + 2 - 3). Let j be -1 + 2*(-18)/o. Let t = -10 + 13. Solve -20 = j*i - t*i for i.

-4

Suppose 2*q - n - 1 = 0, -9*q - 2 = -5*q + 2*n. Solve q*f = -4*f - 12 for f.

-3

Let b(q) = -q3 - 9*q2 + q + 12. Let n be b(-9). Suppose 28 = 4*g - 5*a, -11 = 2*a - n. Solve 0 = -h - g*h for h.

0

Suppose -2*u - 3*u = -20. Suppose -u*i + 3 = -i. Let y be (7⁄4)/(i/4). Solve -3*g + 8 = -y*g for g.

-2

Let i be 6/(-6 + 3) - -4. Solve -3*c - 7 - i = 0 for c.

-3

Suppose -j + 8 = -x, -3*j + j - 5*x - 19 = 0. Suppose -4*t = 4*r, -j*t + 9 = -4*r - 5. Solve t*a - 4*a = 0 for a.

0

Let r = 21 - 41. Let u = r - -24. Solve g = -u*g + 20 for g.

4

Let z be ((-1)/2)/((-1)/4). Suppose -z*c = -c. Solve c = -i - 3 + 4 for i.

1

Let d(m) = 8*m + 1. Let r(l) = l**2 - 4*l - 4. Let t be r(5). Let w be d(t). Solve 4*b = -21 + w for b.

-3