Originally Posted by
david18 Hi I'm on this question where I hacve to find x:
3x+5 - 2x-1 = 3
4 6
and i ended up with 9x + 15 - 4x - 2 = 36
12 = 12
so i removed the 12s to leave me with 9x + 15 - 4x - 2 = 36
Now for my question:
When I am simplifying the left hand side; does it become 5x + 13 or 5x + 17 because if the equation should be written as (9x + 15) - (4x - 2) it would mean a -- which is a plus to make 5x + 17...
edit: for some reason the denominators havent come up where i wanted them to be. but its 3x + 5 all over 4 and 2x - 1 all over 6
and the second error is that both sides should have 12 as their denominators