Let f(i) = i**2 - 15*i + 12. Let a be f(13). Let u = a - -18. Solve -2*n = 10 - u for n.

Let l = -4 - -6. Solve -l = z - 4 for z.

2

Let y be (⁶⁄₄)/(³⁄₄). Suppose 0 = -y*c - 4*d - 0*d + 26, c - 4*d = -17. Solve c*x = 8*x for x.

0

Suppose -15 - 5 = 5*p. Let k be (-9)/(-2) + 2/p. Suppose -5*w + 11 + k = 0. Solve w*u + 1 + 5 = 0 for u.

-2

Suppose 0 = -a - a + 32. Suppose q = 5*q - a. Suppose 6*s - 8 = q*s + m, -s - 2*m - 1 = 0. Solve o + s = 4*o for o.

1

Let p(a) be the second derivative of a⁵⁄₂₀ + a4 - 2*a3 + 19*a²⁄₂ - a. Let q be p(-13). Solve q*c = c for c.

0

Suppose -i + 8 = -1. Let l = -8 + i. Let d = 1 - l. Solve d = 2*p - 4 for p.

2

Let n® = r3 + 23*r2 + 21*r - 22. Let b be n(-22). Solve 5*f - 2*f - 9 = b for f.

3

Let g be ((-4)/3)/((-6)/36). Suppose 22 = -2*u + g. Let i(y) = y**2 + 8*y + 9. Let x be i(u). Solve 0 = 3*t - 1 - x for t.

1

Let l(o) = -o2 + 7*o - 2. Let i be l(7). Let r(v) = 0 + 0 - 4*v - v2. Let w be r(i). Solve -2*y + w*y + 4 = 0 for y.

-2

Let j(a) = 6*a - 7. Let o be j(5). Let c(n) = n3 - 10*n2 + 10*n - 6. Let u be c(9). Solve -5*t + o = u for t.

4