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Mathematics 16 Online
OpenStudy (anonymous):

3x+5y=5 and x+3y=2 what is the value of 4x+8y?

hartnn (hartnn):

just add those 2 equations, whats 5+2 = ?

OpenStudy (anonymous):

7 im trying to figure out a pattern so I can do the rest

hartnn (hartnn):

7 is correct answer. are others of same type ? example ?

OpenStudy (hba):

Use Substitution :)

hartnn (hartnn):

know about substitution or elimination method ?

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