Question

Given that 3x – 8y = 39

Find y when x = 3
Give your answer as an improper fraction in its simplest form.​

Answer 1

-
`(15)/(4)`

Explanation:

Given

3x - 8y = 39 ← substitute x = 3 into the equation

3(3) - 8y = 39

9 - 8y = 39 ( subtract 9 from both sides )

- 8y = 30 ( divide both sides by - 8 )

y =
`(30)/(-8)` = -
`(15)/(4)`