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what is 3x+b.  when X=-2 and b=7

 Sep 9, 2021
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what is 3x+b.  when X=-2 and b=7   

 

3x + b                   original expression  

(3 • –2) + 7           substituted the numerical values 

–6 + 7                   multiplied 3 times –2  

1                            subtracted 6 from 7   

 Sep 9, 2021
edited by Guest  Sep 9, 2021

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