l - 137*h + 140*h for l.
-5
Solve -3*p - 808*s - 38 = -807*s, 5*p - 3*s = 3*s - 71 for p.
-13
Solve t = -4*q + 29, -7*t - 24*t + 19 = 

ve a*y - f + 21 - n = 0, 10 = -4*y - 3*f for y.
-4
Let p(l) = 9*l - 79. Let s be p(7). Let z(v) = 4*v + 89. Let d be z(s). Solve i + 15 = -2*i - m, 4*m = -5*i - d for i.
-5
Let a = 18973 + -18972. Solve -2*r - 6 = 10*y - 6*y, 0 = -y + a for r.
-5
Suppose -864 = 11*f - 919. Solve u = f*k - 17, -2*k + 1 + 5 = 0 for u.
-2
Suppose 0 = 4*u - 5*r - 25, 6*r + 20 = 2*u + 2*r. Let m = 12 - 8. Suppose -m*q = 2*q - u*q. Solve -2*f + 4*k - k - 6 = q, -4*f - 2*k = -4 for f.
0
Suppose 2*p + 3*b - 29 = 0, 3*b + 9 = -p + 31. Let c = -4 + 6. Solve -2 = 5*x - p, -c = -m - 5*x for m.
-3
Suppose 0 = -2*y, 5*a + 500 = 3*a + 4*y. Let g = a + 253. Solve -2*t - g*l = 10, -2*t - 25 = 3*t + 3*l for t.
-5
Let m be (-3)/(-1)*40/6. Let w be (14 + -19)*-3*24/15. Let v = w - m. Solve 21 - 5 = -v*f, 2*r = -2*f - 6 for r.
1
Suppose 4 = -2*d - 5*l, -139*d + 135*d + 44 = -3*l. Let z = -7 - -11. Let r be 2/(-9) - 94/(-18). Solve 3*m - n - z = -r*n, -d = 5*m + 3*n for m.
-4
Let j(b) = -b**3 - 8*b**2 + 14*b + 48. Let q be j(-9). Let v be (-65)/26*(-8)/10. Suppose -p = p - v. Solve -20 = -f - 4*m, 5*f - p = q*m - 16 for f.
0
Let u(g) = 48*g + 1010. Let x be u(-21). Solve 4*c = -11*p + 8*p - 22, -4*c - 20 = x*p for p.
-2
Suppose -59 = -5*d - g, 2*d + 8*g - 38 = 4*g. Let y be 6*(-9)/81 - d/(-3). Solve u = -o + 3 - 0, o + 2*u = y for o.
3
Let r be (-2 - -3*1/(-6))*-2. Suppose -3*b = -r*d - 0*b + 405, 287 = 4*d + 5*b. Let w = 81 - d. Solve -10 - 3 = -2*c + 3*f, -w*f - 15 = 0 for c.
-1
Let o be -2 + (2 + -1)*5. Suppose -15*d + 9030 = -0*d. Let k = 607 - d. Solve -o*f + 4*f - 8 = k*b, f - 2*b = 5 for f.
3
Let a(g) = 60*g**2 + 663*g + 35. Let d be a(-11). Solve 2*b + 12 = -0*n - d*n, 5*b + 29 = -4*n for b.
-5
Let i(j) be the second derivative of -j**4/12 - 23*j**3/6 - 19*j**2/2 - 44*j. Let z be i(-22). Solve 4*h + z*r = 0, -h - r = -2*h for h.
0
Suppose -31*c + 12 = 4*g - 27*c, 5*c = 2*g + 1. Solve 0 = 2*k + t + 2, 4*k - 5 =