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Pre-Algebra 12 Online
OpenStudy (anonymous):

plz help i will medal 3 x when x= - 4 ?

OpenStudy (noseboy908):

Ok, with this type of problem, you need to use substitution. Firstly you're given that x=-4, and you need to solve for 3x. Understand so far?

OpenStudy (anonymous):

yes i do

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