Let x(u) = -u**2 - 7*u + 4. Let i be x(-6). Let w be 4/i - (-161)/35. Suppose w*s = 4*r + r - 35, -24 = -4*r + 3*s. Solve 2*v - 5 = -r*v for v.

Let j be (-1*2 + 8 + -5)*15. Solve r = 4*r - j for r.

5

Let d be 6 + 1 + (-7 - -6). Solve -u = -d*u - 10 for u.

-2

Suppose -n + 7*n - 6 = 0. Let v© be the first derivative of 7*c⁴⁄₄ - 2*c³⁄₃ + c**2 - c - 1. Let i be v(n). Solve i + 0 = -3*o for o.

-2

Suppose 3*g + 6 = 0, -3*g = -2*k - g + 18. Solve -5*b + k*b - 2 = 0 for b.

1

Let l be (-8)/(-28) - 248/(-14). Let h = 48 - l. Suppose 3*w + 15 + 5 = 4*t, -5*w - h = -5*t. Solve 0 = t*u - 0*u - 2 for u.

1

Let l(u) = 4*u2 + 73*u + 4 - 153*u - 5*u2 + 75*u. Let x = 7 + -12. Let n be l(x). Solve -n*i - i = 15 for i.

-3

Suppose -4*m - 20 = -z + 2*z, -m + 5*z - 26 = 0. Let i be (m/(-10))/(²⁄₁₀). Solve i*s - s - 6 = 0 for s.

3

Let s(z) = z3 - 10*z2 + 9*z. Let b be s(9). Solve 0 = -u - b + 2 for u.

2

Let n© = c - 5. Let t be 7/(-2)*(-36)/21. Let v be n(t). Solve -v + 10 = 3*m for m.

3

Let z(d) = d**2 - 5*d. Let r be z(6). Suppose r = q + 2*q. Solve -5*k + q*k = -6 for k.

2