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Mathematics 20 Online
OpenStudy (anonymous):

what is a possible 1st step in eliminating a variable in the following system of equations? x+y=3 3x-4y=23

OpenStudy (anonymous):

btw: an answer could be none of the above

OpenStudy (anonymous):

multiply the entire first equation by 3

OpenStudy (anonymous):

or by 4 your choice. i would multiply the first one by 4 so that when you add the "y" will drop out

OpenStudy (anonymous):

well the answers could be: multiply the 1st by -4 none of the above or multiply 1st by by 3

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