Let n = 81 - 81. Solve n = 4*o - 20 for o.

Suppose -3*y + 5*w + 5 = -15, -y + 4*w + 16 = 0. Solve y = 4*b - 8 - 8 for b.

4

Let w be 11 + 0/(2 - 4). Solve -4*y - 3 = -w for y.

2

Let f be ³⁄₂*(³⁰⁄₉ - 2). Solve -f*d + 6 = -4 for d.

5

Suppose 4*p = 5*g - 8, -p + 5*g - 11 = 6. Let z(h) = -6*h - p + 2*h + 2*h. Let b be z(-3). Solve -b*j = -4*j + 3 for j.

3

Let w(k) = -k3 - 6*k2 + 9*k + 6. Let s be w(-7). Let g = 20 + s. Solve 0*o - g = -3*o for o.

4

Suppose -2 = 2*r + 2*i, -r = -5*r - i + 2. Suppose 3*a = 5 + r. Let f = 1 + 1. Solve a*b = -f + 4 for b.

1

Let f = -21 - -26. Solve -6 - 4 = -f*w for w.

2

Let a(p) = -p - 6. Let k = 3 + -11. Let s be a(k). Let h = 4 - s. Solve 3*u - 5*u = -h for u.

1

Suppose 14 = -5*r + 54. Solve g + r = 3*g for g.

4

Let i(o) = o**2 - 12*o - 18. Let k be i(14). Solve -3*h - k = 2 for h.

-4