Suppose 0 = 419*x - 380*x - 78. Solve -6*f - t - x = -3*f, 2*f + 7 = 5*t for f.

-1

Let p(a) = -a + 6. Suppose 3*j + j - 128 = 0. Suppose 3*w - f + 2*f = 19, 5*w + 2*f = j. Let o be p(w). Solve s = -3*s - v + 22, 5*s - v - 23 = o for s.

5

Let m be 81⁄54 + (-39)/(-2). Let u = m - -7. Suppose 0*k = 3*k. Solve -3*s + 4*y + u = k, 10 = s - y + 2 for s.

4

Let m = -38 - -40. Suppose 6*r = -m*r + 40. Suppose 2*n + a - 5 = 3*n, r*n + 5 = a. Solve -4*i - i + 2*q = 25, n = 3*i + 2*q + 15 for i.

-5

Suppose 396 = 38*r + 16. Solve 0 = 5*w - 4*b + 4, 5*w = 6*b - r*b + 4 for w.

0

Suppose 29 - 5 = 3*u. Suppose u*q - 11*q = -15. Solve -2 = 2*j + 6, -35 = -q*d + 5*j for d.

3

Suppose -51 + 37 = 7*m. Let s© = -2*c3 + 2*c2 + 6*c - 2. Let w be s(m). Solve 2*x - 8 = -4*h, 2*x - 2 = -5*h + w for h.

4

Let w = 1809 + -1807. Let g be ((-5)/2)/((-2)/4). Solve w*b + q = -b - 12, 0 = -3*b - g*q for b.

-5

Suppose 0 = -8*a + 3*a + 5, 4*a = -3*f + 19. Suppose -3*w + w + 16 = f*n, -2*n = w - 7. Solve k = -0*u + n*u, -10 = -5*k for u.

1

Let j = 172 - 159. Suppose -j = -4*z - 5. Solve -y + z*y + g = 9, y = g - 1 for y.

4