Suppose 0 = -2*k + 4*k. Let m be 20⁄2*3⁄5. Suppose 5*f - 4 = 2*z + m, 4*f + z = 21. Solve -f*a + a - 9 = k for a.

-3

Let r be (9/(-6))/(1⁄10). Let w = -10 - -7. Let b be (-18)/r*(8 + w). Solve b*a - 2*a = 8 for a.

2

Let c = -4 + 10. Let g = -4 + 8. Let o be c/(-4)*g/(-2). Solve 10 = -o*u + u for u.

-5

Suppose 0*x = -5*b + 3*x + 10, -3*b = -3*x. Solve -b*i - 1 = -4*i for i.

-1

Let x = 42 + -40. Solve -6 + x = l for l.

-4

Let t be 7 + (-12)/4 - -4. Solve 12 = 11*u - t*u for u.

4

Let u® = -r**2 - 15*r - 22. Let i be u(-11). Solve -3*l + i = 7 for l.

5

Suppose 36 = 4*z + z + 4*p, 0 = -2*z + 5*p - 12. Suppose 0 = -z*m - 4, -5*y - 3 = -4*m - 22. Solve -x = -y + 1 for x.

2

Suppose -12 = -3*h + 3*b, -3*h + 6 = -0*h + 3*b. Let p = 2 - 2. Suppose 0 = n, p = -5*v + 4*n + 28 - 3. Solve -h*t = -v*t - 8 for t.

-4

Let g = -50 - -80. Suppose 4*z + z + 5*o - g = 0, -2*o = -4*z. Suppose 2*n + 3*c = -z*c - 19, 4*n - 37 = 5*c. Solve r - 1 - n = 0 for r.

4