Let c(a) = 1. Let w(u) = u - 4. Let b(j) = -4*c(j) - w(j). Let x be b(0). Solve x = -4*n + n - 15 for n.

Let i be (¹²⁰⁄₉)/5*-3. Let j(p) = -p - 8. Let u be j(i). Solve -l - 4 = -u for l.

-4

Suppose -13 = w - 5*r + 2, -3 = -5*w - r. Suppose -x - 4*t - 16 = 0, w*x - 3*t - 3 = 3*x. Solve 0 = -x*k + k - 12 for k.

-4

Let b(u) = -u + 1. Let v be b(-1). Let y be (2/(-5))/((-1)/20). Let j = v + y. Solve -2*h + 0 - j = 0 for h.

-5

Let v = -17 - -13. Let m = v - -10. Solve -m = -i + 3*i for i.

-3

Let z(a) = a - 1. Suppose 0*o + 4 = o + t, -4*o + 16 = -4*t. Let w be z(o). Let i = 19 - -6. Solve w*m - i = -2*m for m.

5

Suppose -5*y + 3 - 8 = -5*k, -4*y = 4*k - 44. Let x(m) = -5*m - 1. Let r be x(1). Let f = 8 + r. Solve -f - k = 2*n for n.

-4

Suppose -2*m + 4 = -2*k - 2*k, 5*k - 8 = -4*m. Let v be (¹²⁄₂₀ + k)*10. Solve c + 1 = v for c.

5

Let u(d) = -d3 - 10*d2 - d. Let b be u(-10). Let k be 46/b - (-8)/20. Solve 0 = -k*g - 2 - 3 for g.

-1

Let i© = -c3 - c2 - 4. Let u be i(-2). Solve u - 4 = 4*q for q.

-1

Let v = -2 + -4. Let i = 18 + v. Suppose -2*y - 2*y = -i. Solve 0 = y*t - 2 - 7 for t.

3