Let i = -2 + 6. Suppose 0 = -z - z + 5*a - 21, -i*z + 2*a - 2 = 0. Solve 2 + 4 = -z*u for u.

-3

Let a be 52 - (-2)/(-4)*4. Let p be (-1 - a/(-4))*2. Solve 4*r + p = 7 for r.

-4

Suppose -4 = w - 2*w. Suppose -w = -3*n + 8. Solve -a = -n*a for a.

0

Suppose -15 - 13 = -3*w + 5*z, 0 = -3*z - 6. Let d = -4 + w. Solve 0 = 7*j - d*j + 5 for j.

-1

Let v© = -c. Let o(g) = 2*g3 - g2 + 8*g + 2. Let f® = -o® - 6*v®. Let p be f(-1). Solve p*y + 14 = -1 for y.

-5

Let q be (-10)/(1*(-2 + 0)). Let k be 0 - q/((-5)/2). Suppose -2*b - k*b = 0. Solve 0 = x - b + 4 for x.

-4

Let n(k) = -2*k + 3. Let m = -12 + 6. Let j be n(m). Suppose 4*r = -r + 10. Solve t - j = -r*t for t.

5

Let x(g) = -g**2 - 2*g + 2. Let j be x(11). Let y = -209 - j. Let i be y/(-12) + 1⁄3. Solve 4 = 5*w - i for w.

2

Suppose 374*a - 370*a = 16. Solve u + 20 = -a*u for u.

-4

Let r(n) be the first derivative of -n3⁄3 - 2*n2 - 2*n + 4. Let t be r(-2). Solve 2 + 2 = t*o for o.

2