Question

Solve.

y + 12 = 7
(Points : 4)
–5
–4
4
5

Answer 1

y + 12 = 7
You need to isolate y. So subtract twelve from both sides.
y + 12 = 7
- 12 -12
y = ?

Answer 2

-4?

Answer 3

no, -5 is the correct answer.

Answer 4

It's -5. You can plug it in to see for yourself.
y + 12 = 7
-5 + 12 = 7
7 = 7 True.

Answer 5

y=-5 because you must subtract 12 from both sides and you are left with y=-5