Let y = -13 - -10. Let k = -1 - y. Let m be (-2)/(-9) - (-25)/9. Solve -m*i - k*i = -20 for i.

4

Suppose 0 = -0*w + 3*w + 12. Let a = -5 - -11. Let h be ((-4)/a)/(w/42). Solve h*b = 3*b - 4 for b.

-1

Let y = 1 + 4. Let i© = c3 + 7*c2 + 6*c + 1. Let b be i(-6). Solve b = -2*x + y for x.

2

Let h be (-3 + 10/(-5))*-1. Solve -h*f + 10 = -10 for f.

4

Suppose -3*f + x + 36 = 0, -2*f - 14 = -4*f + 4*x. Suppose -f*s - 8 = -15*s. Solve 5 - 13 = -s*h for h.

2

Suppose 2*m + 2*f + 2 = 0, 8 = -2*m - 3*f - f. Let c be ((-14)/(-21))/(m/21). Solve -1 = -2*r + c for r.

4

Suppose -8*d = -3*d. Let o = -25 - -13. Let l be (-8)/(-28) + o/(-7). Solve d = l*n - n for n.

0

Let i be (-6)/(-21) - 668/(-14). Let k be ((-1)/(-4))/(6/i). Solve m - 2 = k for m.

4

Suppose 0 = 3*g - 5*r + 2, r = -4*g - 0*r + 5. Suppose a + g = 5. Solve -3*c - 13 = -a for c.

-3

Suppose 0 = 5*y - 66 - 109. Suppose 2*x + 5*o = -0*x + 35, 2*o = -5*x + y. Solve x*u = u for u.

0