Posted by aria on Thursday, April 28, 2011 at 5:31am.
5/9 + (2/9)x = 25/7 + (6/7)x – 2/3
I would multiply through by 9 first, then by 7 to remove the fractions
9(5/9 + (2/9)x) = 9(25/7 + (6/7)x – 2/3)
5 + 2x = 25.9/7 + (6.9/7)x – 6
7(5 + 2x) = 7(25.9/7 + (6.9/7)x – 6)
35+14x=225+54x-42
now group like terms
35-225+42=54x-14x
-148=40x
-74=20x
-37=10x
x=-37/10
but check the maths
I was wondering about that approach because of the like denominators although they weren't like terms.
Your method makes sense. I will go through your steps for myself and see if I can get the same answer. It may be a good idea for me to make up a similar problem and submit it to see if it is right. Unfortunately, I have no reference and will be graded on the steps taken and the answer. It is not a test, just an assignment with two complex problems that cover many concepts.
Thank you. I will tell the teacher I got help with the problem, although the teachers know we do as there are tutors on other sites we are allowed to access.
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