Let t = -18 + 21. Solve 0 = 4*r - t*r + 5 for r.

-5

Suppose 0 = -2*f - 0*f + 28. Let p = 14 - f. Solve p*q = -q for q.

0

Let z = 5 + -5. Solve z = -5*b - 16 + 6 for b.

-2

Let z(m) = m**2 - 8*m - 6. Let v be z(9). Suppose -v*s + 11 = -1. Solve -s*t + 9 = -t for t.

3

Let d = 6 + -4. Let l(j) = 4*j2 + 0 + 3*j2 - j**3 + d. Let q be l(7). Solve -q*v + 2 + 6 = 0 for v.

4

Suppose 0 = p + s + 4*s - 16, -2*p - 13 = -5*s. Solve 3 + p = -m for m.

-4

Suppose -2*g + 23 + 5 = 0. Let m = 25 - g. Let c = m + -8. Solve 0*q = -c*q + 15 for q.

5

Suppose 0 = x - 2, -2*q - 2*q + x + 2 = 0. Solve 2*l + q = -5 for l.

-3

Suppose -3*d = q - 64, -d - 2*q + 20 = -8. Solve -u + d = -6*u for u.

-4

Let h = -7 + 14. Let x(m) be the second derivative of -m5⁄20 + 7*m4⁄12 + m3⁄6 + m2⁄2 + m. Let w be x(h). Solve 2*u + w = 6*u for u.

2