Re: unsure on the next step?

You made some mistakes

Add "ax" to both sides

Subtract "9b^2" from both sides

Now divide both sides by (3b+a) to get the expression for "x"

and simplify the last line.

As the denominator cannot be zero,

the given condition is

Re: unsure on the next step?

so would i be correct in saying x =(a-3b) so x =-a+3b

Re: unsure on the next step?

Quote:

Originally Posted by

**Orlando** so would i be correct in saying x =(a-3b) so x =-a+3b

does not imply

Re: unsure on the next step?

Quote:

Originally Posted by

**Orlando** so would i be correct in saying x =(a-3b) so x =-a+3b

If you had

-x=(a-3b)

then -(-x)=-(a-3b)

x=-a-(-3b)

x=3b-a

But x=(a-3b) so x=a-3b