Suppose -20 = -4*t + 2*t. Let z = t - 10. Solve z = x + 4*x - 15 for x.

3

Let c = 149 - 231. Let s = -57 - c. Solve 0 = 2*x + 3*x - s for x.

5

Let z be (-3 + 2)/((-1)/(-3)). Suppose 4*o = -5*a - 9 + 24, -3*o + 13 = 2*a. Let t = a - z. Solve t*r + 1 = -1 for r.

-1

Let f(z) = -z3 + 14*z2 - 14*z + 16. Let w be f(13). Solve -w*t = 2*t + 20 for t.

-4

Let a be (-30)/(-18) - -2*(-2)/(-12). Solve 0*n - a*n - 2 = 0 for n.

-1

Let i(g) = g3 + 9*g2 + 8*g. Let z be i(-8). Solve z = -3*f + 1 + 2 for f.

1

Let a be 1 - (2 - (-4)/(-1)). Let o be (a/(-2))/(6/(-8)). Let k = 5 - o. Solve k*d = -d + 20 for d.

5

Let f = -10 - -17. Suppose 17 + f = 6*r. Solve -4*o = -3*o + r for o.

-4

Let j be ((-3)/(-6))/((-1)/(-6)). Solve j*n + 1 = -14 for n.

-5

Let s® = r3 + 7*r2 + 3*r + 3. Let c be s(-6). Let h = -4 + c. Suppose -h = -5*q - 7. Solve -b = q*b + 3 for b.

-1