Let y be 80⁄30 - 2/(-6). Solve 2*a + 11 - y = 0 for a.

-4

Let l(w) = -1 - 1 + 3*w**2 + 2*w + 4. Let k be l(-1). Solve 0 = k*h + 1 + 11 for h.

-4

Let u(k) be the third derivative of 3*k5⁄20 + k4⁄12 - k3⁄6 + 3*k2. Let j be u(1). Let y be j/3 + (-5)/15. Solve -y*n + 4*n = -5 for n.

-5

Let a be (6⁄9)/(2⁄12). Solve r = -a*r - 15 for r.

-3

Suppose -3*u = 2*u + 20. Let t be -1 - (1/(-1) - -6). Let k = u - t. Solve 0 = 5*i - k*i + 6 for i.

-2

Suppose -h = 4*h - 3*z - 6, h = 3*z - 6. Solve -h*g - 7 = -22 for g.

5

Let c = -1 - -1. Suppose -4*k + 0k = c. Let n be -2(k + (-4 - -2)). Solve -t = -5*t - n for t.

-1

Let n be (-2)/4 + 182⁄28. Let q be (-4)/(-3) - (-4)/n. Solve q*z = -z + 3 for z.

1

Suppose -20 = -4*r + x, 2*x + 3*x + 20 = 4*r. Let p = -3 + r. Solve -3 = -p*b + b for b.

3

Let o(b) = -4*b3 + b2 - b - 1. Let n = 5 - 0. Suppose -r + k - 2*k - 3 = 0, n*k + 8 = 2*r. Let h be o®. Solve h*t + 10 = -0*t for t.

-2