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arw1998
Is x= -1.75 the answer to this? I have already worked it out. I am just checking it. 4x+2(x+1)=9
6x +2 = 9 6x = 7 x= 7/6 x= 1.1667 how did u get -1.75 ?
first plug in your answer and if the answer matches up to 9 then thats your answer
4x+2(x+1)=9 4x+2-2(x+1)=9-2 4x(x+1)=7 4x=7 4x/4=7/4 x=1.75 Sorry I meant to put positive 1.75 not negative. But I still have a feeling that my answer is incorrect.
well take 1.75 and plug it in for x and what do you get
4x+2(x+1)=9 4x+2-2(x+1)=9-2 itself is incorrect. why did u subtract 2 ? and its not done properly
okay. so what is the first step to do? I have not had math in about a year so I need some refreshing. My teacher gave us practice problems for the first day, so she didn't teach or go over anything, so I am very lost.
4x+2(x+1)=9 1st step is to simplify 2(x+1) by distributing |dw:1389463858607:dw|
4x+2(x+1)=9 4x+2x+2=9 now subtract 2 from both sides.
so it was 2x? And I have to keep the +2?
4x+2x+2=9 4x+2x = 9-2 can u solve further ? 4x+2x = ???
Thank you so much! I just didn't remember the distributive property part.
you're welcome ^_^ keep practicing :)
You check out Khan's videos to refresh your memory for example http://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-variables-expressions/cc-7th-manipulating-expressions/v/combining-like-terms-and-the-distributive-property In general, if you have a question, search his site for a pertinent video.