Question 132990
(429+3X)/(429+431+4X)=.55 . 
(429+3X)/(860+4X)=.55 NOW CROSS MULTIPLY
.55(860+4X)=429+3X
473+2.2X=429+3X
2.2X-3X=429-473
-.8X=-44
X=-44/-.8
X=55 ADDITIONAL GAMES WILL BE REQUIRED.
PROOF:
(429+3*55)/(860+4*55)=.55
(429+165)/(860+220)=.55
594/1080=.55
.55=.55