The answer is $4,307. If he is paying 159 a month for 39 months, then you take 159 and muliply it by 12 for the year. That gives you 1908. You then add the 2399 that you paid when he signed the lease and it gives you the 4307.
Change 2/4 to 1/2 <span><span>2x+<span>1/2</span>=189.5</span></span> Subtract <span>1/2</span> from both sides(1/2 = .5) 2x=189 Divide both sides by <span>2</span> 2x/2 = x 189/2= 94.5 x=94.5