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Mathematics 19 Online
OpenStudy (cedric):

If you wanted to eliminate the y variable by adding the two equations in the following system, what could be your first step? 3x + y = 6 4x − 5y = 10 Multiply the first equation by 5. Multiply the first equation by −5. Multiply the first equation by −4. Add the two equations together.

OpenStudy (anonymous):

you would multiply the first equation by 5 then add both equations

OpenStudy (cedric):

thats it?

OpenStudy (anonymous):

yes

OpenStudy (cedric):

hmmm

OpenStudy (cedric):

so when you say multiply it by 5 you mean put it in the variable x's place?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

5(3x + y) = (6)5

OpenStudy (cedric):

ohh

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