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Mathematics 22 Online
OpenStudy (anonymous):

Help! Question as screen shot if you click here!

OpenStudy (anonymous):

false

hartnn (hartnn):

yup, thats correct substitution , so true

OpenStudy (anonymous):

Wrong it is different! I thought it was the abc thing?

hartnn (hartnn):

A. describes correct steps...

OpenStudy (anonymous):

for the first one

hartnn (hartnn):

true.

OpenStudy (anonymous):

But what is the abc one then hart?

OpenStudy (anonymous):

+ or - b all that pellet

hartnn (hartnn):

abc one ? i don't see any error in substitution

OpenStudy (anonymous):

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