Question

-2/3x + 3/7 = 1/2

In this problem, is X 13/21?

If X is 13/21 what is the answer to this problem?
-2/3 x 13/21 + 3/7

If X isnt 13/21, what is X?

Answer 1

x = -
`(3)/(28)`

Explanation:

Given

-
`(2)/(3)` x +
`(3)/(7)` =
`(1)/(2)`

Multiply through by 42 ( the LCM of 3, 7 and 2 ) to clear the fractions

- 28x + 18 = 21 ( subtract 18 from both sides )

- 28x = 3 ( divide both sides by - 28 )

x = -
`(3)/(28)`