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Mathematics 20 Online
OpenStudy (anonymous):

i need help with elimination please! 7x + 4y = 30 12x - 10y = -16 i tried to eliminate y but i got -34/118 which i don't think is correct

OpenStudy (anonymous):

@Daniellelovee could you help me? I think i may have done something wrong because i got such a messed up answer

OpenStudy (tabpernick):

man I hate this crap

OpenStudy (anonymous):

yeah its annoying af

OpenStudy (daniellelovee):

ok first you have to work PEMDAS backwards to find the equation of one variable and then replace it (want me to walk you through the steps or nah?)

OpenStudy (anonymous):

ik pemdas but i never knew you used it in elimination

OpenStudy (daniellelovee):

hold up lol I got confused i got this (keep calm) give me a second

OpenStudy (anonymous):

i multiplied the top equation by 10 and the bottom by 4 to cancel out y and then i got that ugly fraction

OpenStudy (anonymous):

ooh

OpenStudy (anonymous):

okay ill try it

OpenStudy (daniellelovee):

no nvm hold up is that im multitasking let me do it on paper first and then I'll tell you how to do it ok?

OpenStudy (anonymous):

ok

OpenStudy (tabpernick):

hi im sexy

OpenStudy (daniellelovee):

ok I did it and I got 2,4 now I'm going to check if I'm right hold on

OpenStudy (anonymous):

ok thank you for helping me!

OpenStudy (daniellelovee):

|dw:1421954102454:dw| thats what you got right?

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