Let p = -8 - -13. Suppose p*r + 10 = -3*t, -t - 2*t + 40 = -5*r. Solve 15 + 5 = -t*w for w.

-4

Suppose 0 = v + 2*v + 4*u - 35, 20 = v + 3*u. Suppose v*q - g - 1 = -0*q, 4*g + 4 = 0. Solve q*a + 2*a - 4 = 0 for a.

2

Suppose 5*g + 44 = 64. Solve -g*l - 15 = -l for l.

-5

Suppose -n + 16 = -h + 3*n, -2*n = -8. Solve h = -r - 2*r - 12 for r.

-4

Suppose -8*j - 3*q = -3*j - 25, 3*q = -3*j + 21. Suppose j = w - 1. Solve -w*u - 12 = -6*u for u.

4

Suppose 0*t - 3t = 0. Let l be -3(-5 - (2 + -5)). Suppose -l*w = -w. Solve w = -t*y - y for y.

0

Let d be ((-8)/10)/((-2)/15). Solve 0*c - d = 2*c for c.

-3

Suppose -2*l + 3 = 3*z - 1, 5*l = -5*z. Solve 2*k = -0 + z for k.

2

Suppose -9*k - 20 = -5*k. Let t(h) be the second derivative of h5⁄20 + h4⁄3 - 2*h3⁄3 + 7*h2⁄2 + h. Let v be t(k). Solve -v*p - 2 = -0*p for p.

-1

Let a be (-4)/2 + 5 + (19 - 2). Solve -5*l + l - a = 0 for l.

-5