Let x(u) = u**3 - 7*u**2 - u + 10. Let f be x(7). Let j = 20 - 13. Solve f = d + j for d.

Suppose 5*r + 18 = 3*r. Let i = r - -14. Solve i*z = 17 - 7 for z.

2

Let u be 2/(-11) - (-72)/33. Suppose k + 4 = u*k. Let l be (k/3)/((-4)/(-6)). Solve -l*d - 20 = -7*d for d.

4

Let v(t) = 2 - 2*t2 + 6 + 2 - 8*t + t2. Let j be v(-9). Solve 0 = y - j - 0 for y.

1

Let u = 12 - -20. Suppose -2*y - 4*l = -6*y + u, -4 = -y - l. Solve 0 = -y*r + r + 5 for r.

1

Let j be (-10)/35 + 37*(-3)/(-21). Solve -5*n + 0 = j for n.

-1

Let k = -9 - -12. Suppose 1 = -r + k. Solve -r - 8 = 2*i for i.

-5

Let x be 14/(-3)*(-18)/21. Let g(z) = z3 + 8*z2 + 10. Let f be g(-8). Solve 0 = x*v + f - 26 for v.

4

Let m be (⁷⁸⁄₂₁ - 4) + (-46)/(-14). Solve m*z + 1 = 4 for z.

1

Let v(a) = -5*a - 3. Let n be v(-2). Suppose 0*m + 5*t = -4*m, -m = 4*t - 11. Let q = m + n. Solve u = -u + q for u.

1

Suppose 0 = -5*t + 2*t. Let z = t + 3. Solve 7 = 5*f - z for f.

2