Question

Solve the equation 1/5x + 2 = 8 for x.

50

30

40

10

Answer 1

1)subtract 2 from both sides
2)multiply both sides by 5

Answer 2

you can multiply through by 5x so you have:
1+10x = 40x
and then solve for x:
x = 1/30

Answer 3

THANK YOU I took forever to figure it out how come theres sooo many genius people on this site and Im not one of them:(

Answer 4

whay how estebananya

Answer 5

what*

Answer 6

He is trying to show you how to clear the fraction

Answer 7

how do you do that

Answer 8

multiply both sides by 5 in this case, if their were more than one fraction you would have to find a comman denomantor.

Answer 9

More importantly, why?
You turn a two-step problem into a three-step one that way...

Answer 10

you could also just divide 6 by 1/5th and get the same answer

Answer 11

I did that I end up having 1x+2=40 thenwhat

Answer 12

what do you get just subtracting 2 from both sides?
1/5x+2-2=8-2
simplify above...

Answer 13

you would end up with x+10=40, x=30...but it's not important test had the quickest way. Just be sure you know the concepts behind what your doing

Answer 14

where does the ten come in

Answer 15

is it (1/5)x or 1/(5x)?
if the answer is the first, i messed up

Answer 16

can some one just show me step by step NOT missing any steps how to do it cuz I REALLY want to learn....

Answer 17

before you worry about clearing functions or anything like that make sure you get your x on one side and your constant on the other.

Answer 18

then you can multiply by 5 inorder to clear your function and solve the expresion in this case.

Answer 19

Or if you don't feel like clearing a function divide by the coificent infront of the varible, which i do most of the time unless i don't have a calculator.

Answer 20

1)subtract 2 from both sides:

1/5x+2=8
-2 -2
1/5x=6

2) multiply both sides by 5.

I cannot do this for you as it directly gives the answer.

Answer 21

how are you'll sooo smart:( thankx

Answer 22

Lots of practice

Answer 23

I still can't help but feel like there's some ambiguity. Is it
\[\frac{1}{5x} + 2 = 8\]
or \[\frac{1}{5}x + 2 = 8\]?

Answer 24

Given the answer choices there is no ambiguity though, eh?

Answer 25

the second one Jemurray3

Answer 26

Oh, I didn't even read the choices... nevermind me :) In the future baracuda, just in case, use parentheses if you can.

Answer 27

ok