Let j be (12/42)/(1/7). Solve 0 = 7*t - j*t + 20 for t.

Let h(a) = a - 1. Let i be h(-5). Let k be ((-2)/6)/((-2)/i). Let z = 4 + k. Solve -2*l - 20 = z*l for l.

-4

Suppose 0 = 4*g + 4*r - 52, -4*g - g - r = -45. Let t = 3 + -3. Suppose 20 = 5*f - 5*x, 5*f + 2*x - x - 14 = t. Solve f*d - g = d for d.

4

Suppose 2*m - 5*x - 17 = 3*m, 3*x = 3*m - 21. Let v be (-10)/(-4) + m/6. Let h = -13 + 13. Solve -v*n = -h*n for n.

0

Let a(b) = 6b - 1. Let s be a(-1). Let g be (6 + s)(0 - 5). Solve g = 2*q + 15 for q.

-5

Suppose -w = 4*l - 4*w - 77, -5*l + 3*w + 94 = 0. Let o(v) be the third derivative of v⁴⁄₂₄ - v³⁄₃ + v**2. Let y be o(4). Solve -y*k - l = -7 for k.

-5

Let q(i) = i2. Let y be q(1). Let j(f) = f2 - 2*f - 1. Let a be j(3). Solve y - a = -l for l.

1

Let x(p) = p3 - 5*p2 + 2*p + 1. Let h be x(4). Let l = h - -7. Suppose l = 2*v - 4*v + 2. Solve -i = -v - 4 for i.

5

Let s = -53 - -57. Solve -4*z + s = 24 for z.

-5

Let y(j) = j**2 - 5*j + 3. Let k(d) = d + 10. Let i be k(-6). Let v be y(i). Let z be 4 + v - (2 + -2). Solve 0 = -w - 1 - z for w.

-4

Let c = -36 + 48. Solve -2*u - c = u for u.

-4