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August 14th, 2018, 12:38 AM  #1 
Newbie Joined: Aug 2018 From: HK Posts: 17 Thanks: 0  Function and graph (2)
How can I calculate if g(x+1)=2x+3, find g(x) Please help, with details, thank you!! 
August 14th, 2018, 12:42 AM  #2  
Math Team Joined: May 2013 From: The Astral plane Posts: 1,978 Thanks: 788 Math Focus: Wibbly wobbly timeywimey stuff.  Quote:
g(x + 1) = 2x + 3 g(u) = 2(u  1) + 3 g(u) = 2u  2 + 3 g(u) = 2u + 1 Now for the cheat code.... The variable in the equation can be any variable we like. So let it be "x" g(x) = 2x + 1 Dan  
August 14th, 2018, 01:02 AM  #3 
Newbie Joined: Aug 2018 From: HK Posts: 17 Thanks: 0 
Thank you!!


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