Let d(b) = -b3 + 8*b2 + 41*b + 87. Let s be d(12). Solve 4*v - 2*r - s = -7, 0 = -5*v + r - 5 for v.

-1

Suppose -5*s = 20, -2*x + s = 3*s. Solve 0 = -x*u + 3*i + 22, -15*i = 4*u - 11*i - 8 for u.

4

Let j(s) = -12*s + 82. Let g be j(-6). Suppose 144 = -2*a + g. Solve 0 = -4*c + 3*z, -a*c - 2*z + 5*z = -3 for c.

3

Suppose 0 = 4*g - 65*v + 68*v - 105, -4*v + 108 = 4*g. Solve -3*t + 6 = -3*y, g*t + 32 = 20*t - 4*y for t.

-3

Let v be (-132)/(-4 + 0)*(-2)/(-6). Suppose -v*u = -7*u - 28. Suppose -u*j + 12*j - 15 = 0. Solve j*z = -5*r + 13, 2*z - 8 + 1 = -3*r for r.

5

Suppose 21 = 4*a + 9. Suppose 0 = -3*n + 95 - 38. Solve -j - n = -2*j + a*z, 5*j - 5*z = 45 for j.

4

Let r(o) = -21*o - 1089. Let t be r(-52). Solve 0 = u + 5*h - 22, 2*h = t*u + 29 - 10 for u.

-3

Suppose 28 - 84 = -b - 39. Solve r + 6 + b = -5*z, -9 = -r + 3*z for r.

-3

Suppose -15*a - 5*q + 35 = -10*a, -4*a + 13 = -q. Solve 2*d - 11 = 5*c, -2*d + 4 = -a*c - 6 for d.

3

Let y be -5 - ((-18)/(-189) - 107⁄21). Solve y = 4*f + 5*g - 9, 4*g = -4*f + 7 + 1 for f.

1