Let l = -3 + 5. Solve 0 = 7*r - l*r + 25 for r.

-5

Suppose 0 = -2*v + 2, -6*v = 5*y - v - 20. Solve y*o - 2*o = -3 for o.

-3

Let r(f) = -3*f - 9. Let a be r(-6). Solve 2*s = -1 - a for s.

-5

Let l = 11 + -11. Solve l*q + 3*q = 12 for q.

4

Let o be ((-2)/(-5))/((-2)/(-20)). Let u(i) = i3 - 13*i2 + i + 12. Let p be u(13). Solve z + o*z = p for z.

5

Suppose 0*p = 3*p - 3*w - 27, 5*p = -5*w + 35. Suppose 2*v - 2 = p. Solve -8 - 7 = v*j for j.

-3

Suppose 31 = 4*f + 3*b, 2*b = f - b + 11. Suppose -3*y - 3*w + 183 = 0, f*y - 2*w + 5*w - 243 = 0. Suppose 0*j + y = 3*j. Solve 2*o - j = 7*o for o.

-4

Let w be 1*2/(6⁄15). Suppose 5*s = s + w*q - 7, -s = -q + 1. Solve 6 = z + s*z for z.

2

Suppose d = 4*d - 9. Solve d + 2 = -5*g for g.

-1

Suppose 0*w = t + 2*w - 20, 5*t - 3*w - 48 = 0. Solve t = -3*a - a for a.

-3