U UCSD6 Full Member 10+ Year Member 15+ Year Member Aug 3, 2009 #1 Advertisement - Members don't see this ad hi, just wondering if anyone could help me out on a quntitative reasoning problem. here's the question; if y= x+4/x-1 then which of the following represents x? a.3y/y+1 b.3y+2/y-1 c.3y+2/y d.4+y/y-1 e.4y-2/y-1 thanks
Advertisement - Members don't see this ad hi, just wondering if anyone could help me out on a quntitative reasoning problem. here's the question; if y= x+4/x-1 then which of the following represents x? a.3y/y+1 b.3y+2/y-1 c.3y+2/y d.4+y/y-1 e.4y-2/y-1 thanks
U UCB05 Full Member 15+ Year Member Aug 3, 2009 #2 UCSD6 said: hi, just wondering if anyone could help me out on a quntitative reasoning problem. here's the question; if y= x+4/x-1 then which of the following represents x? a.3y/y+1 b.3y+2/y-1 c.3y+2/y d.4+y/y-1 e.4y-2/y-1 thanks Click to expand... y = (x+4)/(x-1) *multiply both sides by (x-1) y(x-1) = (x+4) *distribute* yx - y = x+4 *move y and x to other sides* yx -x = 4+y *factor out an x on the left side* x(y-1) = y+4 x = (y+4)/(y-1) Upvote 0 Downvote
UCSD6 said: hi, just wondering if anyone could help me out on a quntitative reasoning problem. here's the question; if y= x+4/x-1 then which of the following represents x? a.3y/y+1 b.3y+2/y-1 c.3y+2/y d.4+y/y-1 e.4y-2/y-1 thanks Click to expand... y = (x+4)/(x-1) *multiply both sides by (x-1) y(x-1) = (x+4) *distribute* yx - y = x+4 *move y and x to other sides* yx -x = 4+y *factor out an x on the left side* x(y-1) = y+4 x = (y+4)/(y-1)
