Homework Help: maths

Posted by forest on Tuesday, May 8, 2007 at 12:40pm.

6y=9-3x rearrange for x=

Change 6y = 9 - 3x to:
3x = -6y + 9, then solve for x by dividing both sides by 3 to get:

x = -2y + 3

when you divided both sides by 3. there is a rule where you cant divide the answer if theirs an addition sign.
so

3x=-6y+9

x=(-6y+9)all over 3
you cant simplify it more than that

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