Suppose i = 6*i - 4*r + 27, 0 = 5*i + 4*r + 3. Let k = i + 6. Solve 0 = q - k + 4 for q.

Let y be (⁶⁄₄ + -1)*6. Let b = -2 + y. Solve -19 - b = -4*a for a.

5

Suppose 15 = -3*l, -3 = -h + 2*l + 1. Let i be 1/h - (-31)/6. Solve 0*s = i*s + 20 for s.

-4

Suppose -13*w + 128 = -5*w. Let f(i) = i3 - 3*i2 - 4*i + 2. Suppose -d + 1 + 3 = 0. Let b be f(d). Solve -w = 6*o - b*o for o.

-4

Let l be (-4)/(-3)*3*5. Suppose 3*x = 4 + 11. Suppose -x*v + 16 = 3*o - 16, 12 = 5*o - 2*v. Solve o*r = -r + l for r.

4

Let i(d) = -3*d2 + 16*d - 2. Let u(j) = -7*j2 + 33*j - 5. Let a© = 9*i© - 4*u©. Let p be a(-8). Let g = 42 + p. Solve s = 4*s + g for s.

-4

Suppose 5*n = n + 2*q + 52, -3*n = -3*q - 42. Let d be ¹²⁵⁄₃₀ + 1/(-6). Suppose d*z - n = 0, 5*g + 2*z - 14 = 17. Solve 0 = -g*t + 19 + 6 for t.

5

Let t(z) = z**2. Let y be t(-2). Suppose -3*s - 3 = -3*c + 30, -2*c + 4*s + 14 = 0. Solve -c = -h - y*h for h.

3

Let q be -1 + 14/(-6)*-3. Suppose 60 = 7*b - 3*b. Solve -i + q*i = b for i.

3

Let r be (-4)/(-18) + ⁸⁶⁄₁₈. Suppose -r*o + 20 = -35. Solve o = -5*t - 9 for t.

-4

Let w(x) be the second derivative of -x⁶⁄₂₄₀ - x⁵⁄₂₄ + x**⁴⁄₆ - 2*x. Let n(t) be the third derivative of w(t). Let r be n(-7). Solve -r = 5*v - v for v.

-4