Let t(f) = -f - 9. Let j be t(-12). Solve 7 = -j*b - 2 for b.

Let h be (0*¹⁄₄)/(-1). Let d = 0 - h. Solve -5*k + 10 + 15 = d for k.

5

Let b be (-6)/(-3) + 0 + (-1 - -2). Solve 16 = -b*x + 7*x for x.

4

Suppose -5*h + 7*g = 4*g - 3, 5*h + g + 1 = 0. Solve -4 = 2*r - h for r.

-2

Let a be (-5)/15 + (-13)/(-3). Suppose b - a*b = 0. Solve b*u - 5 = u for u.

-5

Suppose -2*x = -4*u - 4*x, 0 = 5*u - 2*x. Suppose u = -2*n - 5*v - 10, v + v - 2 = -2*n. Solve 0 = -0*o - n*o + 15 for o.

3

Let s be ¹⁰⁄₂₅ + (-6)/(-10). Solve -3*p + s = 4 for p.

-1

Suppose 2*d + 41 = -2*p + 7*p, 3*d = -3*p + 12. Solve 0 = -p*f + 4*f + 6 for f.

2

Suppose -6*i - 8 = -98. Solve 4*s = -1 - i for s.

-4

Let a© = 5*c - 19. Let v be a(4). Solve 4 = -3*l + v for l.

-1

Let r be (-4)/8 - 9/(-2). Solve x + 3 = r*x for x.

1