Solve 13*o - 31 = 8 for o.
3
Solve 0 = -54*i + 71 + 145 for i.
4
Solve 69 - 45 = -8*v for v.
-3
Solve 31*z = 56*z - 150 for z.
6
Solve -2*l - 8 = 2*l for l.
-2
Solve -5*u = -u + 4 for u.
-1
Solve -2*d - 2*d = 7*d for d.
0
Solve -37*i + 1 = 38 for i.
-1
Solve 4 = 93*g - 97*g for g.
-1
Solve -140*p = -125*p + 150 for p.
-10