Question 13232

1) six more than a number would be you adding six to something so therefore it would be...6+n

2) five apples fewer then sally woud be you having less apples then sally does  so that means the equation would be 5-n

3) the quotion means that you are going to divide 34 by n

4) x+3x=15...
first of all you have to combine like terms
...there is not a number infront of x but it is understood to be one 
so 1x+3x=4x...
now you have 4x=15..
you now need to divide both sides by 4 
four divided by four cancells each other out and leaves you with x 
and four divided by 15 leaves you with 3.75..
so x=3.75
now after you have found out what x is you need to check your work....
do it like this..say 3.75+3*3.75=15

5) x over nine = -7..
first of all you multiply each side by 9..
it leaves you with 9y=-63 
you then divide by nine and it cancells out the nine...
so y = -63

6)...i am sorry but i dont clearly understand what you are wanting to know on this question im sorry