Let n be 21/(-7) + 1*5. Suppose -4*x + 8 = -3*l, -n*l + 0*l - 3*x = -23. Solve 2*z = z + l for z.

4

Let i = 5 - -3. Suppose 0 = y - 1, 3*u - 2*y - 10 = -u. Suppose 5*q = -0*q - u*v + 16, -2*q - 5*v = -14. Solve -q*c + i = -4*c for c.

-4

Let a(w) = -2*w2 - 2*w + 4. Let v(j) = -3*j2 - 4*j + 7. Let p(o) = -5*a(o) + 3*v(o). Let y be p(3). Suppose 0 = -y*s + s. Solve -4*l = -s*l - 12 for l.

3

Suppose -2*s - 6 = -5*s. Suppose 7 = -k - 0*k - s*q, -8 = -k + q. Suppose -k*o = 5*i - 7, 2*i - 3 = -o - 0. Solve -i = 4*m + 10 for m.

-3

Let l(x) = -x3 + 6*x2 + 7*x - 5. Let q be l(5). Let z be 20⁄11 - (-10)/q. Solve 2*n + 12 = -z*n for n.

-3

Let j be (-16)/10*(-20)/8. Solve 0 = -2*y + j + 6 for y.

5

Let z be 0*((-9)/(-6))/(-3). Let l = z + 3. Solve 0 = l*j + 2*j for j.

0

Suppose 0 = 42*o - 46*o + 16. Solve -o*z + 15 + 5 = 0 for z.

5

Suppose -5*c + 42 = -4*s - 24, -s - 14 = -c. Solve 0 = -8*f + c*f - 6 for f.

3

Let u = 1 + -1. Let q be -1 - u - -1 - 0. Suppose 4*z - 2*g + 4*g = 8, 2*g - 10 = -5*z. Solve q = z*n + n + 12 for n.

-4