Let f = -42 - -47. Solve -2*r + f*r = 12 for r.

4

Let t be ((-18)/10)/(9/(-15)). Solve 0 = -t*y + y + 10 for y.

5

Suppose -3*f + 9 + 15 = 0. Let k(u) = -u**2 + 8*u + 7. Let b be k(f). Suppose b = 5*x - 8. Solve -7*j = -x*j + 16 for j.

-4

Let z(k) = k - 2. Let h be z(2). Let f = 11 + -2. Suppose c - f = -2*c. Solve c*q - 8*q - 10 = h for q.

-2

Let z = -4 - -6. Let y be z/(-4)*8/(-2). Suppose y*a - 5*c - 28 = 0, 4*a + 0*a - 12 = -c. Solve -5*n + a*n = 0 for n.

0

Suppose -3*h + 3*z - 8 = -h, -z + 8 = 2*h. Solve -m - h + 0 = 0 for m.

-2

Suppose 0 = 3*q - 0*q. Suppose -g + q*g = 0. Suppose g*y = 4*y + 2*r - 46, -2*y = 5*r - 43. Solve -6 = -3*o + y for o.

5

Let v(g) = -7 + 0*g - 2*g + 0*g. Let j be v(-4). Solve y - j = -0*y for y.

1

Let b be (14/(-6))/((-6)/18). Let n = -4 + b. Suppose n*g - 2*q = 13, -2*g + 6 - 1 = -5*q. Solve -3*m - 17 = -g for m.

-4

Let v(n) = -n**2 + 7*n - 7. Let c(l) = l - 4. Let a be c(9). Let w be v(a). Solve 1 = w*t + 16 for t.

-5