Let w(x) = -5*x**3 + 4*x**3 + 7*x**2 + 7*x - 4 - x**2. Let d be w(7). Let c be ((-16)/6)/d*6. Solve -s = -c*s - 9 for s.

Let l be 6/(-1 + ²⁵⁄₁₅). Solve 0 = -5*o + 11 + l for o.

4

Suppose -3*r + 12 = -0*r. Let j be (1 + -1)/2 - -25. Solve -r*q - j = -9*q for q.

5

Let a = -90 + 90. Solve a = -w + 3*w for w.

0

Let a = -109 + 111. Solve -a*b = 3*b - 15 for b.

3

Suppose 4*q - 4*r + 13 = q, 5*q - 4*r + 11 = 0. Let x(s) = -s**2 + 6*s + 2. Let k be x(6). Solve k*l - q = -9 for l.

-4

Let u(b) = 2*b**2 + 4*b + 3. Let q be u(-2). Suppose 0 = -5*f - 0*a + 2*a + 43, 2*f = -4*a - 2. Let d be (-148)/(-18) - ²⁄₉. Solve q*t = f + d for t.

5

Let m(g) = -g + 10. Let t be m(6). Let z = t + -2. Suppose -3*f + 8*f = 0. Solve -u - z + f = 0 for u.

-2

Suppose -4*y - c = -14, -y + 19 = -5*c + 5. Solve 2*z - y = 6*z for z.

-1

Suppose -2*h = 4*w - 24, h - 4*w - w = -23. Solve -2*x - h = -4 for x.

1

Let x(y) = 0*y + 5*y2 + y - y2. Let p(a) = a3 + 4*a2 + 4*a + 4. Let c be p(-3). Let d be x©. Solve -d*h - 1 = 4 for h.

-1