The system of equations is coincident. What are the missing values? 3x+y==7 9x+y= PLease expand if possable.

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The system of equations is coincident. What are the missing values? 3x+y==7 9x+__y=__ PLease expand if possable.

asked Dec 27, 2017 233k views

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JackD · Answer 1 · 2017-12-31T12:13:38+0000

you should just multiply the first equation by 3 so you will have :
3 ( 3x+y= 7 ) ⇒ 9x + 3y = 21 so now you have the missing values and they are 3 and 21 :))
i hope this is helpful
have a nice day

The system of equations is coincident. What are the missing values? 3x+y==7 9x+y= PLease expand if possable.

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