Question

Solve for x: -2/3x+1/5x=2
A.
-1/
10
B.
-7/
30
C.
-4/
15
D.
13/
30
E. None of the above

Answer 1

Im so confused because the answer should be -7/30 or -30/7

Answer 2

I get -30/7

Answer 3

did you get that by using the reciprocal?

Answer 4

\[-\frac{ 2 }{ 3 }x+\frac{ 1 }{ 5 }x=2\]
\[-\frac{ 10 }{ 15}x+\frac{ 3 }{ 15}x=2\]
becomes
\[-\frac{ 7 }{ 15 }x=2\]
\[x=2*-\frac{ 15 }{ 7 }\]
\[x=-\frac{ 30 }{ 7 }\]

Answer 5

if you plug that in for x it does not equal 2.-7/30 will equal 2

Answer 6

the x is in the denominator

Answer 7

I did the math and got 2

Answer 8

are you using an calculator? if so make sure you use ()

Answer 9

a*

Answer 10

n. How would -30/7 if you have negative 7 over 15x equals two.

Answer 11

I don't have -7 over 15. I have -15 over 7

Answer 12

in this problem the x is in the denominator. And I am not sure how to isolate x

Answer 13

Are you sure the x is in the denom and not being multiplied by the whole fraction?

Answer 14

can you use the equation tab below the chat box to type in the equation exactly the way it look in the book.

Answer 15

yes and that is what has me stuck. is proper \[\frac{ -3 }{3x }+\frac{ 1 }{ 5x }=2\]

Answer 16

oh okay.

Answer 17

-2/3x

Answer 18

is it -3/3x or -2/3x?

Answer 19

ok

Answer 20

\[\frac{ -2 }{ 3x }+\frac{ 1 }{ 5x }=2\]

Answer 21

I am sorry. I'm stumped. bump the question and perhaps someone else can help you.

Answer 22

I do not see a way to get -7/30 out of the original equation.

Answer 23

don't you need to multiply 15x by the two also to keep both sides equal

Answer 24

you get -10 +3 = 30x
then divide by 30

Answer 25

yes when you multiply 2 by 15x you get 30x then you divide the 30

Answer 26

thank you

Answer 27

okay, im glad you got it. np