Let i = -2 + 4. Suppose -4*l - i*r = 20, 4*r - 8*r = -5*l - 12. Let d be (3 - 0)/((-3)/l). Solve -d = 5*y - y for y.

Let s® = -5*r - 5. Let y be s(-13). Suppose 3*p - 4*x = y, x + 0*x = 0. Solve -2*i - p = 2*i for i.

-5

Let y(f) = 6*f3 + 4*f + 4. Let q(b) = b3 + b**2 + b. Let s(p) = -5*q(p) + y(p). Let j be s(5). Let z be ((j - -3) + -2)/(-2). Solve -2 = -z*g + g for g.

-2

Suppose 4*p = -2*y + 18, 0 = 4*y - 6*p + 2*p - 12. Solve y*a - a + 12 = 0 for a.

-3

Let n(m) be the second derivative of m⁷⁄₁₆₈ + m⁶⁄₇₂₀ + m**⁴⁄₁₂ + 3*m. Let d(t) be the third derivative of n(t). Let s be d(1). Solve -g + 5*g - s = 0 for g.

4

Suppose 0 = -6*o + 12 - 0. Solve -o*z + 2 = -2 for z.

2

Let i(v) = -v + 2. Let l be i(-2). Suppose h = l*h - 6. Suppose 0*k = k - h. Solve 2*a = a + k for a.

2

Suppose 3*c = -5*d + 31, -d + c = -2*c + 1. Suppose -5*f - 51 = -4*r, -d*r + f + 30 = 6*f. Solve r = -5*q - 11 for q.

-4

Suppose -f + 5*f + 3*n = -1, f - 5*n - 17 = 0. Suppose 4*a = -a + 4*z + 6, -3*a + f*z = -4. Solve -t + a*t = -4 for t.

-4

Let u be 4/(1 - -3) - -4. Suppose -u*p - 9 = -24. Solve 0 = 2*x + p*x - 25 for x.

5

Let d(q) = -q**2 + 4*q + 9. Let k be d(5). Let s(w) = -3*w + 0*w - 1 + 2*w. Let x be s(-3). Solve 0 = x*a + k + 4 for a.

-4