Let f = 9 + -5. Solve -20 = -r - f*r for r.

4

Suppose -3*z = -1 - 5. Suppose h = 2*t + 5*h + 28, -26 = 2*t + 2*h. Let d = t + 18. Solve -z*o + 12 = -d*o for o.

-3

Let f = 98 - 57. Let t = -7 + 14. Suppose -t = -4*n + f. Solve 4*y - y - n = 0 for y.

4

Suppose 0*u - 2*m + 5 = -u, -20 = -5*m. Let w be 209/u - (-3)/9. Suppose 0 = -2*f - 2*l + 50, -2*f - w = -6*f + 2*l. Solve -5*g + g = f for g.

-5

Let j(f) = -f**2. Let n be j(1). Let a = n + 3. Suppose y + a*u = -1, u + 3*u = -y - 5. Solve 0 = -0*t + y*t + 3 for t.

-1

Let w be (-36)/(-14)*14/(-2). Let c be (-1)/(2*3/w). Let o = -3 + c. Solve -j + 5*j = o for j.

0

Let r be 5*(5 + -2 - 2). Solve -j + 6*j - r = 0 for j.

1

Let p(i) = 2 - 5*i - 6*i2 - 2*i2 + 7*i**2. Let w be p(-5). Solve -5*o + 15 = -w*o for o.

5

Suppose 4*u = u. Let d = u - -1. Let q be 2*d/(6⁄9). Solve 0 = o + q*o - 8 for o.

2

Suppose -h + 3*v = -3, 4*v + 6 = 2*h - 0*v. Suppose -22 - 11 = h*c. Let w = c - -21. Solve -4*q - w = q for q.

-2