Suppose -r - 3*d = r - 13, 3*r - 2*d - 13 = 0. Suppose 2*z + s - 2 = 3, r*z + 3*s = 15. Solve z = 4*a - 2 + 14 for a.

-3

Let f be 0/(4*2⁄4). Suppose 15 = n + 4*n. Suppose 0*u - 9 = -n*u. Solve u*r + 12 = -f*r for r.

-4

Let p© = -3*c. Let q be p(6). Let w be (6/(-9))/(3/q). Solve z + 5 = -w*z for z.

-1

Let k = 1 + -1. Let n = k - -6. Solve -u + n*u = -20 for u.

-4

Suppose -5*t + 3*j = 177, t = 2*j - 0*j - 34. Let q be 102⁄27 - 8/t. Solve 2*i = q*i - 6 for i.

3

Let l = -17 + 17. Solve l = -t - 3*t + 12 for t.

3

Suppose -5*b = -29 - 1. Solve -s = s - b for s.

3

Let t be 6/(-5)*(-20)/6. Suppose 0 = t*q - 3 - 5. Suppose -4*i + 15 = -f, -4*f + q*i + 20 = 6*i. Solve -2*s = -5 + f for s.

2

Let p be 0*(-2 + (-5)/(-2)). Suppose 5*u + 2*r - 5 = 1, -r - 2 = p. Solve -4 = -3*g + u for g.

2

Let x© = -10*c - 15. Let o(w) = -7*w - 10. Let p(h) = 7*o(h) - 5*x(h). Let f be p(-5). Let b = -27 - -39. Solve -3*a - a + b = f for a.

3