Let w be 42⁄9*-3*8/(-28). Solve 0 = -5*r - f - 15, 7*r = 5*r - w*f - 24 for r.

-2

Suppose 2*j = -5*r, j - 2*j + 4*r = -13. Suppose 4*a - 88 = -0*p - 5*p, j*a = -p + 89. Solve -2*u - a + 0 = 3*m, 0 = -2*m + u - 9 for m.

-5

Let s(a) = a2 + 4*a + 3. Let x be s(-4). Let l(t) = -2*t2 + 130*t - 372. Let y be l(3). Solve 15 = n - y*m + x*m, 2*n - 18 = -3*m for n.

3

Suppose 25 = f + 21. Let q be 5 + (f - 4)/(-6). Solve l + q = -5*g, 2*l - 5*g + 0*g = 5 for l.

0

Suppose 0 = -2*t + 5*j - 156, -8*t - j - 234 = -5*t. Let g be (13/(t/8))/(2/(-6)). Solve g*n - 12 = 0, 5*u - 4*u = -5*n + 17 for u.

2

Suppose 45*z + 66*z = 0. Solve -5*u - 25 = 3*j, 3*u + j + 10 + 1 = z for u.

-2

Let m = -4351 - -4367. Solve 0 = -4*c + 3*r - 16, 4*c = -5*r - m for c.

-4

Let x be 5*(309/(-15) - 2 - 2). Let k = -105 - x. Solve 5*q = -u + k, 5*q - q - 3*u = 3 for q.

3

Suppose 8*y - 28 = 3*n, -4*y + 7*n - 3*n + 24 = 0. Solve -j - 3*s = -8*s - 2, -5*s = -y*j + 4 for j.

2

Suppose -5*j + 10*j - 3*c - 227 = 0, -4*c = -5*j + 231. Suppose 41*o + 6 = j*o. Solve 3*a + 2*b = o, -3*a + 2*a = -3*b - 12 for a.

3