Keava said:Your way i guess you would do:
48:2(x+3) = 2
48:2x+6 = 2 | -6
48:2x = 2 - 6
48:2x = -4
and.. it would be that x has to be negative number.
The only way it would work is if 2(x+3) was written as [2(x+3)] since then you would have
482x+6) = 2 so 48 = 2(2x+6) so 48 = 4x + 12 so 4x = 36
When you drop brackets you can't suddenly create another set out of nowhere. It's not how mathematics work.
the third line is wrong
This would be clear if you wrote above and below lines instead of everything in one line so I'll try to do so as best as I can in this texthingy:
48:2(x+3)=2 is the same as
48
-------- = 2 because 2(x+3) is a single term, just as 3x
2(x+3)
48
-------- = 2
2x+6
Hopefully now you see you cannot move the 6 to the other side as -6. You have to move the entire lower part to the other side as *(2x+6)