Let i(c) = -c**3 - 21*c**2 - c - 21. Let f be i(-21). Solve f = -3*r - 6 + 21 for r.

Let v(x) = -x**2 - 11x + 17. Let z be v(-12). Let p be z/(-10)-2*1. Solve 0 = 4*f + p - 13 for f.

3

Suppose y - 2*y = -24. Let a = 40 - y. Let q = a - 7. Solve -5*s + q = -2*s for s.

3

Let m(t) = t3 + 4*t2 + 4*t + 7. Let q be m(-3). Solve 2*o - q = 6 for o.

5

Suppose -2 = -2*w + s + 8, s + 16 = 4*w. Let g(d) = 3*d3 + 11*d2 + 2*d - 7. Let r be g(-3). Solve -r*m + w = 8 for m.

-1

Let l be (-6)/8 - ²⁄₈. Let y = l - -1. Solve 3*j + 2*j - 15 = y for j.

3

Suppose -w + 1 = -1. Solve r - w*r = -2 for r.

2

Let h = -11 + 11. Suppose g - 26 = -2*c, -g + 3*g + 3*c - 47 = h. Let v be ⁸⁄₅ + (-4)/(-10). Solve -2*q + g = v*q for q.

4

Suppose 5*l - 26 = 4. Let o(w) = 12*w**2. Let m be o(1). Suppose 3*h + 5*v - 24 = 0, 4*h - m = -h + v. Solve -3 = h*u + l for u.

-3

Let f® = -r + 15. Let q be f(11). Solve -q*a + 3 = -9 for a.

3

Let z be 6/(-9) + 32/(-6). Let n be (-8)/z*(-3 + 6). Solve n*o + 0*o - 20 = 0 for o.

5