Suppose 9*a = 15*a - 18. Solve -a*n + 5 = 2 for n.

Suppose 7*r - 3*r - 64 = 0. Suppose -3*s + 2 = -r. Suppose -3*o - 6 = -s*o. Solve 0 = o*k - 0*k for k.

0

Let f be ¹⁶²⁄₂₁ + ⁸⁄₂₈. Let c be (f/6)/((-18)/(-81)). Solve w = c*w + 25 for w.

-5

Suppose -2*j - 8 = -4. Let y = j + 6. Let m be ((-3)/(-2))/(6/y). Solve -a + m = 4 for a.

-3

Let h(s) = s3 - 2*s2 - s - 1. Let d be 1 - 2 - (-2 - 3). Let o be h(d). Suppose 3*j + 4*r - o + 5 = 0, 5*r = 20. Solve 0 = 4*l - j*l - 4 for l.

2

Suppose 0 = -i - 2*g, -2*i - g + 3*g + 6 = 0. Solve -i*k + 3 = -1 for k.

2

Let l(t) be the second derivative of 0 - ¹⁄₂*t3 - 2*t - ¹⁄₂*t2. Let u be l(-1). Solve -3*p + u = -7 for p.

3

Let t(o) = o3 - 9*o2 + 9*o - 9. Let r be t(8). Let l = 2 - r. Let v(w) = w3 - 3*w2 + 2*w - 3. Let y be v(l). Solve y*k = -k for k.

0

Suppose 34*c + 4 = 36*c. Solve c*k = -6 - 2 for k.

-4

Let v = 20 - 19. Solve 5*s = -4 - v for s.

-1

Let u be (-2784)/(-145) - 4/(-5). Solve -x - 4*x - u = 0 for x.

-4