Let q be ((-2)/(-5))/((-138)/621 + (-23)/(-90)). Solve -u - 3*h + 7 = 0, -9*h = -q*h + 3 for u.

4

Let r(f) = 2*f**2 + 52*f + 100. Let j be r(-2). Solve 5*l - j*c = 6*l - 21, -11 = -l - 2*c for l.

1

Let u(j) = 5*j**2 - 12*j - 1. Let l be u(8). Let w = l + -212. Solve 2*m - 2 = -4*n, 2*n + 4*m - 3 = -w for n.

2

Let h = -73 + 77. Suppose 3*b + h*b - 21 = 0. Solve -5*o + o + b*f - 23 = 0, 4*o + 3 = -f for o.

-2

Let r(i) = -40*i + 162. Let y be r(4). Solve h = 0, 0 = -c - y*h + 3 for c.

3

Let v = -6 + 10. Let f = 25 - 20. Suppose -564*u + 574*u = 110. Solve 2*x + 25 = -f*d, -4*x - v*d - u = 9 for x.

0

Suppose 5*a = 3*y - 59 + 14, a = 5*y - 53. Let w(k) = 9*k - 85. Let r be w(y). Solve -5*v - 25 = -3*f, -r = -3*f + v + 12 for f.

5

Suppose 5*j + 24 = 8*j. Let o be (j/(-3) - -3)*105. Solve 5*w + 3*y - o = -2*y, -2 = w - 2*y for w.

4

Suppose 28*a - 57 = 9*a. Let j(l) = -4*l - 1. Let g be j(-1). Solve g*f + 2*s = -9, -a*f - 8 = -5*s + 22 for f.

-5

Suppose -718 + 2814 = 311*q + 213*q. Let z = -12 + 7. Let b = z - -9. Solve a - 24 = -4*u - 3, b*u + q = 4*a for a.

5