Respuesta :

It’s the second one j=7
To find the answer to this equation we can start by rearranging it.

8 + j = 15

Could be turned into...

15 - 8 = j

We switch the equation to make it easier to solve.

Now we solve the equation.

15 - 8 = 7

So our answer is j = 7.

If you would like to check the answer, simply plug in what we got for j. Like shown...

8 + j = 15

8 + 7 = 15

And now we know that j = 7 is 100% correct.