Suppose -2*o + 20 = 3*o. Suppose s - c = o, 0*s - 4*c = -3*s + 7. Let d be -5*3/(s/(-3)). Solve -d*r = -3*r for r.

Suppose b + 2*s = 4, 4*b - 40 = 2*s - 4. Suppose 4*n + b = -2*f + 30, 4*n - 4*f - 4 = 0. Let r = n - 0. Solve 8 = -0*g + r*g for g.

2

Suppose 3*v - 20 = -2*p, 2*v = 6*v + 5*p - 36. Solve -v*c + 4 = -2*c for c.

2

Suppose -w + 4*r + 3 = -1, -4*w + 5*r = -60. Let y be ³³⁄₅ - 12/w. Suppose 4*f - y = -2. Solve 0 = 3*i - 2 - f for i.

1

Let o be (-39)/(-9) + (-5)/15. Suppose d + o*u = 8, 3*u = d + 2 + 4. Solve z - 2 - 3 = d for z.

5

Suppose 4l - 12 = l. Let r be (-2)/l(-42)/7. Solve r = g + 1 for g.

2

Suppose -5*n = o - 0*o + 10, -2*o + n + 24 = 0. Suppose -2*p + 4*p = o. Solve 10*q = p*q for q.

0

Suppose 2*i - 4*i + 14 = 0. Let p = 15 - i. Solve -2*h + 0 + p = 0 for h.

4

Let m© = c + 1. Let q be m(-1). Solve -4*k + q = -8 for k.

2

Let g = 104 - 83. Suppose 2*j + 0*j = 26. Let q = g - j. Solve 2*i - 2 = q for i.

5

Let i = -20 - -24. Solve -i*s = -6 - 10 for s.

4