Let a = -20 - -22. Solve a*x - 6*x + 12 = 0 for x.

Let d be ((-4)/5)/((-12)/60). Solve -9*o = -d*o + 20 for o.

-4

Let p = -3 + 5. Let h be (0/p)/(1 + 0). Let v = h + 0. Solve 5 = -v*l + l for l.

5

Suppose f - 7 - 25 = -5*h, -4*f + 18 = -2*h. Suppose -f*d = -3*d - 16. Suppose -5*v + 40 = 4*k, -16 = -0*v - 3*v - d*k. Solve -3*u - u = -v for u.

3

Let v(o) be the third derivative of o⁶⁄₄₀ - o⁴⁄₂₄ + o³⁄₆ + 8*o2. Let g be v(1). Solve -10 = g*z - 1 for z.

-3

Let g = -126 + 211. Let v be g/25 - ⁴⁄₁₀. Solve -v*z = -15 + 3 for z.

4

Let r be (1 + ¹²⁄₄)*1. Let z(p) = -p**2 + 2*p - 1. Let x be z(1). Suppose r*c - 21 - 19 = x. Solve c = 2*n + 3*n for n.

2

Let w be (0 - 0)*(-14)/(-42). Solve w*b + 4 = -4*b for b.

-1

Suppose 5*v - 4*v = 0. Solve v*s - 3 = -s for s.

3

Suppose 5*h + 0*g = -3*g - 20, 0 = 2*g + 10. Let c be (-2 - h) + ¹⁵⁄₃. Let k be (9/c)/((-6)/(-16)). Solve -10 = x - k*x for x.

2

Suppose -4*t = -4*h - 28, 3*h = 5*h - t + 13. Let n = h + 34. Suppose 3*c = 7*c - n. Solve -4*m = c - 3 for m.

-1