Suppose -4 = -4*d - 2*i, -6*i + 4*i = 2*d + 2. Solve d*r = -12 + 3 for r.

Suppose 3*c + 0c = 0. Let f be -5 + 1(2 + -1). Let v = f - -16. Solve -4*d + c*d = -v for d.

3

Suppose x + 4*t = 22, -x + 3*t = -4*x + 21. Suppose -11 = 3*u + 5*a, 4*u - 1 = -x*a - 11. Let k be (-6)/(-33) - u/(-11). Solve k = 6*v - 2*v - 8 for v.

2

Let v be ((-6)/(-4))/((-15)/(-20)). Let m = -3 - -1. Let w = m + v. Solve -h + 2*h - 2 = w for h.

2

Suppose -2*p + 2*g - 4 = 0, -2*p = 2*p - 5*g + 11. Let o = 13 + -13. Solve -5*r - p - 4 = o for r.

-1

Let o© be the second derivative of -⁵⁄₂*c2 + 2*c - ²⁄₃*c4 + ¹⁄₂₀*c5 + ⁴⁄₃*c3 + 0. Let b be o(7). Solve -4*l + b - 10 = 0 for l.

-2

Let n(p) be the first derivative of p³⁄₃ + p2 - 5*p + 2. Let c be n(-4). Suppose -c*g + 4*u + 27 = 0, -4*g = g + 3*u - 16. Solve -1 = 3*a + g for a.

-2

Let w be -2(-9)/(-24)-4. Let q = w - 3. Let d be (10/(-2 + q))/(-1). Solve -12 = b - d*b for b.

3

Let k(j) = 7*j - 4. Let t(p) = -2*p + 7*p + 2 - 8*p. Let m(q) = -4*k(q) - 9*t(q). Let g be m(-3). Solve 0 = -f - 3 - g for f.

-4

Let i be (-68)/(-20) + 3/((-15)/2). Suppose -3*b = 3*v - 288, 4*b + 2*v = 3*b + 92. Suppose 0 = -4*k - 0*k + b. Solve -i*c + 10 = k for c.

-5

Suppose 0 = 31*s - 19*s - 36. Solve s*a + 2*a - 25 = 0 for a.

5