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Mathematics 17 Online
OpenStudy (anonymous):

MEDAL AND FAN!!! To solve the system of equations by elimination, x + 3y = 3 and -2x + 4y = 6, what number do you multiply the first equation by to eliminate the x? A. 1 B. 0 C. 3 D. 2

OpenStudy (precal):

look at equation 2, tell me what number is in front of the x

OpenStudy (anonymous):

2

OpenStudy (anonymous):

actually its -2

OpenStudy (precal):

|dw:1367626565246:dw|

OpenStudy (anonymous):

well flutter -2

OpenStudy (precal):

ok if we want to get rid of it, we need the opposite sign of that number

OpenStudy (anonymous):

so positive

OpenStudy (precal):

|dw:1367626610072:dw|

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