Let t(k) be the first derivative of -k**2 - 2. Let v be t(-4). Solve -u = v - 4 for u.

Suppose -4*d = 8*d - 4*d. Solve 20 = 5*h - d for h.

4

Let x = 0 + 2. Let a = -9 - -14. Solve -g + x - a = 0 for g.

-3

Let k be ¹⁰⁄₄*¹⁶⁄₂₀. Solve -2 - 4 = k*n for n.

-3

Let v be (13/(325/(-80)))/(2/(-5)). Solve -i - v = i for i.

-4

Suppose 2*l - 4 = 6. Let t(j) = -11*j + 78. Let n be t(7). Solve -16 + n = -l*c for c.

3

Let q be (196/(-70))/(21/(-15) - -1). Solve -16 = 3*g - q*g for g.

4

Suppose -4*s = -s + 24. Let f = s - -27. Solve -4*o + f = 3 for o.

4

Suppose -5*v = -3*d - 77, -4*v = -7*v - 4*d + 23. Suppose v + 9 = 3*y + 5*z, 6 = 4*y - 5*z. Solve 4*n = -0*n + y for n.

1

Suppose -3*w = -0*w + 3, 3*w + 3 = -k. Suppose k*o = -2*o. Solve t = -o*t for t.

0

Let n(d) = d3 + d. Let z(s) = -2*s3 - 2*s*2 + s + 1. Let i(b) = n(b) + z(b). Let f be i(-2). Let c be -2((-4 - f) + -1). Solve -c = -3*r - r for r.

1