Question

4a-3=2b+7
------------------------
4a-2b=7+3
4a-2b=10
NOW MY QUESTION IS. i have to divide it by 2, right?
WHY? where did the 2 came from?
so that it will be
2a-b=5

Answer 1

You did it wrong...

Answer 2

It's like this:

Answer 3

4a-3=2b+7
Then I would do plus 3 on both sides.
4a=2b+10

Answer 4

soooo the book i got did it wrong?? -_-" XD

Answer 5

Oh, sorry, I read it wrong, lol

Answer 6

You can divide by anything you want, as long as you do it on both sides!

Answer 7

ahhh ok that explains it, thank you, i just dont like how my book doesnt really explains the steps XD

Answer 8

Thanks man!

Answer 9

no prob:D