Suppose -6*y - 80*y + 330 = 72. Solve -5*a + 7 = -y*k, 5 = -11*a + 15*a - 3*k for a.

2

Let a be (6⁄9)/((-6)/(-99)). Let w(j) = -j3 + 4*j2 + 2*j - 2. Let x be w(1). Solve -4*l - a = x*r - 3, -5*r - 2*l + 10 = 0 for r.

4

Let j be ((-715)/99 - -7) + (-4)/(-18). Solve 0 = -4*i - 16, j = 3*z - 2*i - 3*i - 23 for z.

1

Let u(q) = -15*q - 630. Let r be u(-42). Solve -3*k = -4*j + 33 - 10, r = 2*j + 5*k + 21 for j.

2

Suppose -74 = 4*u - 8*u - 5*j, -38 = -3*u + 5*j. Solve 0 = 4*f - z - 16, -18*z + u*z = 0 for f.

4

Let c(a) = 2*a2. Let v be c(-1). Let d(y) = 7*y + y2 + 6*y + 62 - 73 + 0*y**2. Let r be d(-14). Solve v*m + r*m = 4*p + 25, -4*m = -4*p - 24 for m.

1

Let w be (-4)/1 + -97 + 105. Let d(m) = m3 + 12*m2 - 12*m + 18. Let o be d(-13). Solve 3 = -n - o*h, -n - 8 = -w*n + 2*h for n.

2

Suppose -4*c + 0*c + 86 = 5*y, 5*y - 91 = c. Let w(k) = 20*k - y*k - 4 - 5 + 1. Let o be w(4). Solve o = -p - 4*z + 16, 5*z - 20 = -p - 0*z for p.

0

Let z = 1678 + -1673. Solve -5 = -l - z*a, -l + 0*a - a = -5 for l.

5

Let b be 0 + 4⁄4 - -8. Let g be b - (4 - 1 - -1). Suppose 3*v - 5*f = -0*f + 37, -g*f = -4*v + 41. Solve 5*r + 8 = u, -v = -2*u + 2 for r.

-1