Solve -39*r = -12*r + 11*r + 266 for r.
Solve this plz.

A: -7

Solve 600*g + 806*g - 1301 - 4323 = 0 for g.
Solve this plz.

A: 4

Solve 0 = -4*u + 14*u + 70 for u.
Solve this plz.

A:
-7