i also need to know what x is plz help show steps too
2007-05-16 10:53:29 · 6 answers · asked by andrew 3 in Science & Mathematics ➔ Mathematics
x/6 - 5/8 =4 multiply both sides by 24
4x-15=96 add 15 to each side
4x=111 divide both sides by 4
x=111/4=27.75
2007-05-16 10:57:32 · answer #1 · answered by yupchagee 7 · 6⤊ 0⤋
Well the fall back will always be the product of all of the fractions. Thus if you multiplied everyting by 48 (6 x 8) you would get rid of all the fractions. However there are often lower common numbers.. 24 works in this case also since both 6 and 8 are factors.
When in doubt use the fall back. It just takes longer to reduce in the next steps.
.
2007-05-16 17:58:08 · answer #2 · answered by ca_surveyor 7 · 0⤊ 0⤋
there is a common denomanator of 24 so multiply both sides by 24 to get 4x - 15 = 96 then its just a simple algebra equation 4x = 111 x = 111/4 i think
2007-05-16 17:57:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
find the common nominator, which mean:
24(x/6) - 24(5/8) = 24(4)
4x - 15 = 96
4x = 96+15
4x = 111
2007-05-16 18:01:17 · answer #4 · answered by Math Worm 1 · 0⤊ 0⤋
multiply by 6
x-30/8=24
multiply by 8
8x-30=192
add 30
8x=222
divide by 8
x=27.75
2007-05-16 18:00:21 · answer #5 · answered by sellasell 3 · 0⤊ 0⤋
*To get rid of those fractions, mult. both sides by the LCD of 24.
2007-05-16 18:14:45 · answer #6 · answered by jdoh10 4 · 0⤊ 0⤋