Let n = -5 + 7. Let u(c) = 10*c**3 - c**2 + c - 1. Let r be u(1). Let f = -7 + r. Solve f*a + n*a = -12 for a.

Suppose -6*t + t = 2130. Let p be t/(-21) + 2/(-7). Suppose 0*x = -2*i + 4*x + 12, 5*i - 22 = 2*x. Solve -i*c - c = -p for c.

4

Suppose 12 = 3*n + 9. Solve 0 = -5*l - 9 - n for l.

-2

Let j be ²⁄₄ + ¹⁸⁄₄. Suppose j*n - 4*w = 38, 4*w - 1 + 9 = 2*n. Let o be 10 - (-15)/(-20)*4. Solve o*l = 2*l - n for l.

-2

Let t(d) = d**2 + 6d + 4. Let b be t(-6). Let h be -1(-6)/(9/(-3)). Let y = b + h. Solve y*a = 4*a + 6 for a.

-3

Let c(k) = k**2 - 6*k + 2. Let u be c(6). Solve -2 - 4 = -u*g for g.

3

Suppose l + 64 = -4*y, 4*y + 64 = -0*y - 2*l. Let m be 7/(-35) + y/(-5). Solve 0 = -m*i - 0*i - 15 for i.

-5

Suppose 4*y - 28 = -8. Suppose 5*n = 3*b + y - 32, -4*b = 4*n + 28. Let d be -2*3/n*2. Solve -3*i = -d*i + 1 for i.

-1

Let t be (-54)/4*(-2)/3. Suppose t = d + 2. Solve -2*z = -d*z for z.

0

Suppose u = -5*i + 7, -i = -6*u + u - 17. Solve 0 = -i*l - 0*l + 10 for l.

5

Suppose 4 = 3*l - 11. Suppose 5*p = l*n + 2*p + 9, -12 = -n - 4*p. Solve 5 = -c - n*c for c.

-5