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Mathematics 15 Online
OpenStudy (anonymous):

Solve the following system of equations using elimination: 3x + 5y = 12 2x + 8y = 22

OpenStudy (anonymous):

Help me please I don get it -_-

OpenStudy (anonymous):

A. (-1, 3) B. (1, -3) C. (1, 3) D. (3, -1)

OpenStudy (anonymous):

ok.....

OpenStudy (anonymous):

hello black star .. it is quite simple

OpenStudy (anonymous):

crosali take it from here

OpenStudy (anonymous):

do you understand what is elimination btw? it is removal of similar terms aka the variable

OpenStudy (anonymous):

so when you look at the variable you dont see any thing similar all the numbers are different in both the equations sooo .the thing is you try to make them similar

OpenStudy (anonymous):

so you multiply the first one by two and the second equation by 3 then subtract both the equations ... then you get y=3 then plug that value in the first equation and you get x=-1 there you go the answer is (-1,3)

OpenStudy (anonymous):

hi

OpenStudy (anonymous):

thanks Crosali

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