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Mathematics 7 Online
OpenStudy (anonymous):

If you were to solve the following system by substitution, what would be the best variable to solve for, and from what equation? 2x+6y=9 3x-12y=15 a. y, in the second equation b.y, in the first equation c.x, in the first equation d.x, in the second equation

OpenStudy (anonymous):

c

OpenStudy (anonymous):

why?

OpenStudy (anonymous):

if we send y in right hand side equation become 3x=12y+15

OpenStudy (anonymous):

take 3 common both side and cut it yhen equation become small to put in equation first ok

OpenStudy (anonymous):

oh yay thanks:)

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