morganvillegas morganvillegas

27-08-2014
Mathematics

contestada

How to solve 2x+3=9x-11

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TaylorBayley TaylorBayley

27-08-2014

2x+3=9x-11 -- subtract 2x from both sides and add 11 to both sides
14=7x -- divide by 7
2=x

x=2

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27-08-2014

[tex]2x+3=9x-11 \ \ |\ subtract\ 9x \ and \ 3\ to\ both\ sides\\\\2x+3 -9x -3=9x-11-9x-3\\\\-7x =-14 \ \ | \ divide \ both \ sides\ by\ (-7)\\\\x=2 [/tex]

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