Let h be ((-25)/(-10))/(2/(-4)). Let g be 3/(-3)*2 - h. Solve -12 + 0 = g*o for o.

-4

Let n(s) = -s3 - 7*s2 - 2*s - 3. Let m be n(-7). Let q = 5 - m. Let j be 3 - 2*3/q. Solve -j*r + 0*r = 4 for r.

-1

Let x = 42 - 26. Suppose 0 = -5*d + x - 1. Suppose 2*a = -7 + 31. Solve -a = d*c - 0*c for c.

-4

Let v(l) = -l - 6. Suppose 2*c = t + 8, 5*t = t - 2*c + 18. Let w be t + -3 + -1 - 6. Let p be v(w). Solve -p*f + 8 = -6*f for f.

-2

Let g be 45/(-36)*(-11 + 3). Solve g*b = 7*b + 15 for b.

5

Suppose 0 = 4*r - 8 - 12. Solve -r*y - 4 = -y for y.

-1

Suppose 0*n + r - 105 = -n, 5*n + 4*r = 521. Suppose 33 - n = -4*m. Let a be m + (2 - (4 + 0)). Solve -z + a = -4*z for z.

-5

Suppose -12*r + 18 = -8*r + 2*s, 4*r - 27 = -5*s. Solve r*k + 2*k = 20 for k.

4

Let k(p) = p - 1. Let s be k(5). Let z(y) = y - 4. Let n be z(s). Solve -2*l - 1 + 7 = n for l.

3

Let y be (-177)/(-15) + 1⁄5. Let h be (14/(-4))/((-2)/y). Suppose 2*n = -0*n - 4*b + 50, n + 4*b - h = 0. Solve n - 13 = 4*r for r.

4