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Mathematics 18 Online
OpenStudy (anonymous):

x+5/4x-37=78

OpenStudy (karatechopper):

x=22

OpenStudy (anonymous):

tyy but how did you do itt

OpenStudy (karatechopper):

oops messed it up let me try again..

OpenStudy (anonymous):

cross multiplying then solve for x

OpenStudy (karatechopper):

x+5/4x-37=78 x+4x/5-37=78 5x/-32=78 5x=78 x -32 5x=2496 x=499.2

OpenStudy (anonymous):

yeah but raheen can you show steps plzz

OpenStudy (anonymous):

tyy karatee

OpenStudy (karatechopper):

ur welcomeeee alanah!!

jimthompson5910 (jim_thompson5910):

Is the equation \[\large \frac{x+5}{4x-37}=78\] or is it \[\large x+\frac{5}{4x-37}=78\] or is it \[\large x+\frac{5}{4x}-37=78\] or is it \[\large \frac{x+5}{4x}-37=78\] ???

OpenStudy (anonymous):

lol what @ jim

OpenStudy (anonymous):

so confused

OpenStudy (anonymous):

the third one

jimthompson5910 (jim_thompson5910):

there are 4 possible ways to read what you wrote and I've listed them above

jimthompson5910 (jim_thompson5910):

oh ok thx

jimthompson5910 (jim_thompson5910):

\[\large x+\frac{5}{4x}-37=78\] \[\large x+\frac{5}{4x}=78+37\] \[\large x+\frac{5}{4x}=115\] \[\large x\left(\frac{4x}{4x}\right)+\frac{5}{4x}=115\] \[\large \frac{4x^2}{4x}+\frac{5}{4x}=115\] \[\large \frac{4x^2+5}{4x}=115\] \[\large 4x^2+5=115(4x)\] \[\large 4x^2+5=460x\] \[\large 4x^2-460x+5=0\] Now solve this equation using the quadratic formula to find the answers.

OpenStudy (karatechopper):

i bet alanah is as confused as i am?

jimthompson5910 (jim_thompson5910):

the answer will depend on what the equation really is

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