Question

What is the value of x in this proportion 2/7 = -5/x+3​

Answer 1

x = -20.5 or 20 1/2

Explanation:

cross multiply.

`(2)/(7) = (-5)/(x+3)`

subtract 6 on both sides.

⇒
`2x + 6 = - 35`

divide -41 by 2.

⇒
`(2x)/(2) = (-41)/(2)`

answer ↓

⇒
`x = -20.5`