Question

3x + 5/16= 3/4-1/8x-1/2 Every time I work this out I get -5. But the back of my book says its -1/50 what am I doing wrong?

Answer 1

(3x + 5/16= 3/4-1/8x-1/2) * 16

48x + 5= 12 - 2x -8

46x = -9

you will need to better define the setup using grouping symbols or the equation editor.

Answer 2

and was spose to be 50x :)

Answer 3

ugh, in any event, i forgot how to add and subtract; but it looks like the book is defining the setup differently than you have presented

Answer 4

ah, got it ....

you get -5, the book gets -1/50

and i get -1/50 when i add and subtract it correctly

Answer 5

without knowing the steps you took, its hard to say what might have gone wrong

Answer 6

\[3x + \frac 5{16}= \frac 34-\frac 18x-\frac 12\]
since 2,4,8,16 are all common factors of 16, lets clear the fractions by multiplying this by 16
\[16\left(3x + \frac 5{16}= \frac 34-\frac 18x-\frac 12\right)\]
\[3(16)x + \frac {5(16)}{16}= \frac {3(16)}4-\frac {1(16)}8x-\frac {1(16)}2\]
\[48x + 5= 12-2x-8\]

Answer 7

make sure you simplified the fractions correctly after multiplying by 16

Answer 8

after that, its just adding 2x, subtracting 5, and dividing off 50 to get to x

Answer 9

Oh, I forgot to multiply the 16 to the 3. thank you!

Answer 10

keep up the good work ;)