Let o = -51 + 72. Let k = o - 20. Let x be ((2 - 1) + -1)/1. Solve -r - k - 4 = x for r.

Let v = 16 + -14. Solve -v*o + 12 = o for o.

4

Let m(s) = s3 - 8*s2. Let j be m(8). Suppose j = 4*i - i - 6. Solve i*f = -2*f + 12 for f.

3

Suppose -4*h + 8 = 3*t, 0*h + t - 4 = -2h. Let d be 5-3*(-1)/15. Suppose 4*m - d = -2*j + 3*j, -m = -j + 2. Solve -j - h = u for u.

-5

Let u be 3/(-2)*(-4)/(-3). Let o be 2/u - (-1 - 0). Solve o = l + l + 8 for l.

-4

Let f be -5 + -1*(0 + 0). Let l = -1 - f. Let d(n) = -n**2 + 8*n + 7. Let z be d(8). Solve -l*t + 9 = -z*t for t.

-3

Let v be (-6)/4 + ¹¹⁴⁄₄. Suppose 2*d - c = -6 + 17, -5*c - v = -3*d. Suppose -5*q = 2*a - 14, d*a + q + 9 = 37. Solve -13 = 5*u + a for u.

-4

Let g(j) = 2j + 1. Let z be g(2). Let l(i) = -i + 5. Let c be l(0). Let a be 21((-15)/(-9))/c. Solve z*m - 3 = a for m.

2

Suppose 5*q + 2 - 22 = 0. Let t(y) = y - 5. Let a be t(5). Suppose a*u + u = 0. Solve -2*k + q = -u*k for k.

2

Let y be 0/(1 + 0)*-1. Suppose y*m = m. Solve -z + m = 4 for z.

-4

Suppose -2*x = 3*x - 10. Let b = 7 - x. Solve z - 6*z - b = 0 for z.

-1