Let s = -5 - -10. Let g = s - 4. Let k = g - -1. Solve -x + 6 = k for x.

4

Let u = -68 - -72. Solve 4*a = -0*a + u for a.

1

Let m(t) = -t3 + 4*t2 - 1. Let o be m(4). Let l = o + 4. Solve -l*r = 2 + 4 for r.

-2

Let n be 4/(1 - 0/(-5)). Solve 0 = -n*s - 25 + 9 for s.

-4

Suppose -2*f = -5*a + 6, -6*a - 2 = -11*a + 4*f. Solve -a*y - 2 = -3*y for y.

2

Suppose -2*g - g = 4*u + 8, g = 4*u - 8. Suppose -4*f + 20 = 0, -2*f - u - 1 = 3*v. Let i be (-3)/6*v/2. Solve 2*y - 3 = i for y.

2

Suppose -4 = -w + 4*v, 5 = w - 3*v - 0*v. Let d = w - 7. Solve 1 = -p - d for p.

-2

Suppose 0 = 4*l + 2*g - 4, -g = 2*g + 6. Let m = l - 0. Solve -3*u - 5 = -m for u.

-1

Suppose -3*a = 2 - 8. Let i = -3 + 7. Suppose -2 + 6 = 3*m + 2*z, i*z = -a*m. Solve y = -1 - m for y.

-3

Suppose 0 = -6*s + 10*s - 16. Solve s = -5*u - 11 for u.

-3