Let v = 91 - 91. Solve v*x - 4 = -x for x.

4

Let n(s) = s - 2. Let z be n(-4). Let v = z - -9. Let w be v/12 - (-1)/(-4). Solve -k + 0 - 1 = w for k.

-1

Let c be 3⁄9 - 1⁄3. Let y(u) = -u2 - 1. Let p be y(1). Let f(i) = 2*i2 + 3*i + 1. Let r be f(p). Solve c*s = -r*s + 15 for s.

5

Suppose 3*z + 8 = -z. Let x be ((-80)/2)/z - 0. Suppose -x = 2*i - 7*i. Solve -t = -i*t for t.

0

Let o be 6⁄10 + 6/(-10). Let j© = -2 + c - 3*c + 0. Let m be j(-3). Solve m*t = -o*t - 20 for t.

-5

Let z be 10/(-4) - 1/(-2). Let f(m) = m3 + 4*m2 + 4*m + 3. Let k be f(z). Solve -k*s = -2 + 17 for s.

-5

Let c(t) = -t + 6. Suppose 10 = 5*j - 5. Let y be c(j). Solve 1 = -p - y for p.

-4

Let i = -15 - -15. Let v(h) = h**2 + 8*h + 4. Let b be v(-3). Let k be -2 + i/2 - b. Solve 2*g - 3 = -k for g.

-3

Let a(f) = -f**2 - 9*f + 1. Let q be a(-4). Let z = -2 + 6. Solve 0 = -z*w - q + 1 for w.

-5

Let a(d) = 4*d - 2. Let v be a(-1). Let t(x) = x**2 + 7*x + 8. Let c be t(v). Solve -2 = -c*l - 6 for l.

-2