Let p(a) = -a + 25. Let f be p(19). Solve -20 = 2*y - f*y for y.

Let s = -23 - -28. Solve -10 = -w - s for w.

5

Let t(i) = -i**3 - 4*i. Let r be t(-4). Suppose -5*a + r = 4*c, 10*a - 5*a - 100 = -5*c. Solve 2*d = 6*d + c for d.

-5

Let j = 129 + -109. Solve j = 2*f + 2*f for f.

5

Let o(i) be the first derivative of i⁴⁄₄ - 2*i³⁄₃ + 2*i + 1. Let p be o(2). Let q(z) = z3 - 2*z2 + z + 1. Let k be q(p). Solve -l - k = 1 for l.

-4

Let a be (2/(-2) + -2)/1. Let j = 8 + a. Solve -3*w = 2*w + j for w.

-1

Suppose -2*o = -8 - 2. Suppose 4*y + 0*g = 4*g + 8, -4*g + 1 = -y. Solve y*u = 2*u - o for u.

-5

Suppose -2 = -2*i + i. Let k = 1 + i. Suppose -2*g = -5*c + k, c - 2 = -5*g + 4. Solve -2*z - 7 = c for z.

-4

Suppose -5*j = 25, -2*a + 136 = -5*j + 39. Suppose -a = -2*v + 2*u, -5*v + 31 = 2*u - 45. Solve -7*o - v = -3*o for o.

-4

Suppose 3*v - 7*v - 36 = 0. Let m = -1 - v. Let f be (-2 - 6)/(7/((-28)/8)). Solve 4 = -m*d + f*d for d.

-1

Suppose 0*b + 2*b = 6*b. Solve b = w - 2 - 0 for w.

2