Let a = 4 - 1. Solve 4 = a*r + 13 for r.

Suppose -4*k + k = -9. Let r(y) = 8*y - 6 - 2*y2 - k*y + 3*y2. Let v be r(-6). Solve -2*t + 3*t + 1 = v for t.

-1

Let j(s) = -s2. Let c(w) = -w2 + 3*w - 2. Let v be c(2). Let u be j(v). Solve 20 = -u*g + 5*g for g.

4

Let h(k) = -262*k + k2 - 2*k2 + 11 + 254*k. Suppose 10 = -i + 1. Let o be h(i). Solve o*q - 3 = q for q.

3

Suppose -83*g = -89*g. Solve -3*m + g*m = 0 for m.

0

Suppose -4 = -3*c + 2. Suppose -4*t = -c*t. Solve g = -t*g for g.

0

Suppose 0 = 4*n + 16*n - 240. Solve l - 5*l = -n for l.

3

Suppose 2*f - 4 = j, 5*f = 2*f + 2*j + 6. Solve -2*y = f*y + 16 for y.

-4

Let j be (¹⁵⁄₉)/(²⁄₆). Let z(b) = 3*b**2 - 2*b - 1. Let i be z(3). Suppose i + 0 = j*t. Solve -2 = t*x - 5*x for x.

2

Suppose 3*c = -5*x - 0*c - 17, x - 2*c = 7. Let g be (x - -2) + ³⁄₁. Let r = -6 - -11. Solve 4*n - r*n = g for n.

-4

Suppose 17 = 2*w + 5. Suppose 0*c = -4*c + 20. Solve c*b + w + 4 = 0 for b.

-2