Question

So this isn’t a test I just want to make sure I’m writing this correctly.

I have written 2x-18=-2y+12
Then I added 18 is that correct so far.

Answer 1

`3`

Explanation:

`2x-18=-2y+12`

`y=12`

`2x-18=-2(12)+12`

`2x-18=-24+12`

`2x-18=-12`

`2x-18+18=-12+18`

`2x=6`

`(2x)/(2) =(6)/(2)`

`x=3`

Answer 2

x = 3

Explanation:

=> 2x-18 = -2y+12

Given that y = 12

Putting in the above equation to get the value of x

=> 2x-18 = -2(12)+12

=> 2x-18 = -24+12

=> 2x-18 = -12

Adding 18 to both sides

=> 2x = -12+18

=> 2x = 6

Dividing both sides by 2

=> x = 3