Let b = 50 - 84. Let g = 31 + -53. Let n = g - b. Solve 0 = 4*r - r - n for r.

Let o(n) = -n3 - 5*n2 - 4*n + 6. Let y© = -c. Let u be y(5). Let z be o(u). Let l = -3 + 4. Solve l - z = -5*w for w.

5

Suppose -5*j + 21 = 2*p + 2*p, -3*j = -3*p + 9. Suppose -7 = -a - p. Solve 0 = 2*s - a*s + 4 for s.

4

Let q(b) = -2 - 3*b - 1 - 1 + b. Let o be q(-6). Solve -5*t + o + 2 = 0 for t.

2

Let w(u) = -u**2 - u + 1. Let o be w(1). Let t be (-5)/(10/(-6)) - 7. Let i be ((-3)/(-6))/(o/t). Solve 5*q - i - 23 = 0 for q.

5

Let v be (-6)/((2 - 0)*(-5)/10). Solve v*j = 3*j - 6 for j.

-2

Let y be 14/(-49) - ¹⁴⁵⁄₇. Let x be (-6)/y + ¹³⁸⁄₇. Solve -d = 3*d - x for d.

5

Suppose 4*s - 5 = -2*a + s, -18 = -5*a - 2*s. Suppose -3*f - 7 = 4*z + 2*f, 4*f - 13 = 3*z. Let r be z*5*20/(-25). Solve a*d = -4 - r for d.

-4

Let o(f) = f. Let s be o(2). Let y be (7/(-21))/(2/(-18)). Suppose y*d - 10 = -s*q, -d = 4*d + q - 12. Solve -3*z + z + d = 0 for z.

1

Suppose -4 = -y, -2*y - 8 = -3*i - y. Suppose i*x = 3 + 5. Solve 3*r + 15 = -x*r for r.

-3

Let n(m) = -m + 12. Let x(t) = -11*t3 + t2 + t + 1. Let q be x(-1). Let l be n(q). Solve 3*r = -l*r + 6 for r.

2