Question

can someone help with this math problem?

Answer 1

so far i've got
(5x/4 - 1/5) = (1 - 2/5x + 1/25)
but i can't figure out what the LCD is to move on?

Answer 2

there's an easier way to do this

notice how your denominators are 1, 4, 5, and 10

what is the least common multiple of these numbers? multiplying the entire equation by the LCM will eliminate all the fractions

Answer 3

its 20 i believe

Answer 4

20?

Answer 5

@lolokrat yes, so try multiplying the entire equation by 20 to eliminate fractions

Answer 6

sorry
25x-4 = 20 - 8x-2

Answer 7

ah, I should have specified, for the parentheses you only have to multiply 20* the number in front

25x - 4 = 20 - 8(x-1/10)

can you try solving from here

Answer 8

erm im not really sure what the next step is

Answer 9

(the reasoning: the -2/5 is already applied to both the x and the -1/10 so you just needed to multiply the -2/5 in front by 20)

anyway, moving on:

25x - 4 = 20 - 8(x-1/10)

adding 4 to both sides

25x = 24 - 8(x-1/10)

distribute the -8

25x = 24 - 8x + 8/10

from here, combine like terms, solve for x

Answer 10

x=124/85 ?

Answer 11

period that looks correct

Answer 12

wait does it want you to simplify ?

Answer 13

it said 124/85 was incorrect

Answer 14

what bro at this point just guess on that one you've done all you can

Answer 15

oh its 124/165

Answer 16

I mean you got half of the answer correct lol

Answer 17

you know I hate these types of questions they all way be so complicated for no reason

Answer 18

what grade is the math your doing ?

Answer 19

krat did you get the answer correct?

Answer 20

aw shoot sorry I got interrupted in the middle of this

for future reference:

25x = 24 - 8x + 8/10

add 8x to both sides

33x = 24 + 8/10

re-writing 24 as 240/10

33x = 240/10 + 8/10 = 248/10

33x = 248/10

330x = 248

x = 248/330 = 124/165