Let d(a) = a - 4. Let i(s) = -s + 5. Let x(h) = -3*d(h) - 2*i(h). Suppose 5*u + 0 = 10. Let j be x(u). Solve j*k + 25 = -5*k for k.

-5

Let f = -6 - 3. Suppose 5*a = -s + 143 + 7, 5*a - 4*s = 175. Let j = a + f. Solve -5*z = -j - 3 for z.

5

Suppose 2*v + 4 = -2*s, -3*s + 5*v - v = -8. Suppose q = 3*q - 4. Suppose s = q*p + p. Solve 2*r + 4 = -p for r.

-2

Let t be (12⁄10)/((-8)/(-20)). Suppose -t*q + 7 = -2. Suppose 0 = q*g + 4*o - 14, 20 = 5*g - o + 6*o. Solve g*u - 4*u = 0 for u.

0

Let m® = r**2 - 4*r + 3. Let f be m(4). Suppose -f*u + 5*b = 2*u - 20, -2*b + 10 = 0. Let q = -9 + u. Solve q = 5*s - 0*s - 10 for s.

2

Let a(w) = w + 1. Let r = -5 - -7. Let i be a®. Suppose 19 = i*x + 4. Solve -x*p + 11 - 1 = 0 for p.

2

Let y(f) = -f + 1. Let k be y(1). Suppose s + 1 = k, 3*i - 5*s = 41 - 6. Suppose 5*b + q = i, 5*b + q = b + 7. Solve b*x = 2*x - 3 for x.

-3

Suppose 4*d - 9*d - n = -19, 3*n = -2*d + 5. Solve 10 = -d*o + 2 for o.

-2

Let g = 1 - 0. Suppose -3*y + 19 = g. Let h = 4 + 1. Solve 3*z - h*z + y = 0 for z.

3

Let r(h) be the second derivative of h3⁄6 - 7*h2⁄2 - 2*h. Let s be r(6). Let m be (-6)/(-2) - (1 + s). Solve 2*i + m = -i for i.

-1