Let i = 75 - 72. Solve -x - 1 = -i for x.

Let b be 7 - (-2 - -3)/(²⁄₆). Solve -b = -z + 1 for z.

5

Let r = -38 + 41. Solve 0 = -c + 4*c + r for c.

-1

Let g = -13 - -53. Suppose 3*c + g = 8*c. Let o be 42/c + ⁹⁄₁₂. Solve 3*q = q + o for q.

3

Suppose 0 = 3*c + j - 5, j + 2 = -4*c + 7. Suppose c*l + 4*l = 0. Solve l*o = -o + 3 for o.

3

Suppose -5*p + 0*c = -5*c - 5, -c + 3 = p. Let k = p - -2. Let v = 9 + -5. Solve 2*n - v - k = 0 for n.

4

Suppose -s + 5*q - 3 = -0*s, 2*s - 9 = -5*q. Solve s*h - 25 = -3*h for h.

5

Let t be (4/(-10))/(5/(-25)). Let s be -4*(t + 14/(-4)). Suppose s*v - 25 = v. Solve 2*i - v*i = -6 for i.

2

Let s be (-5)/(³⁰⁄₁₈) + 4. Solve -r = -s - 2 for r.

3

Suppose 0 = -2*z - 2*z. Let q = 4 + z. Solve q + 0 = -y for y.

-4

Let i(x) = -x. Let s be i(-1). Suppose 20 = -5*j - 5*r, -s + 17 = -3*j - 4*r. Solve 3*f + j + 12 = 0 for f.

-4