Question

Given that 7 x − 2 y = 35 Find y when x = − 9

Answer 1

so x = minus 9

then

7 × (-9) - 2y = 35

-63 - 2y = 35

-2y = 35 plus 63

-2y = 98

- y = 49

y = -49

Answer 2

`\boxed{y = -49}`

Explanation:

=>
`7x-2y = 35`

Given that x = -9

=>
`7(-9) -2y = 35`

=>
`-63-2y = 35`

Adding 63 to both sides

=>
`-2y = 35+63`

=>
`-2y = 98`

Dividing both sides by -2

=>
`y = -49`