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OpenStudy (anonymous):
How do i do 1/2a-3=7-3/4a
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OpenStudy (anonymous):
2a - 12 = 28 -3a 5a = 40 a = 8
OpenStudy (anonymous):
where are you getting 2a-12 from?
OpenStudy (anonymous):
i multiplied the entire equation by 4
OpenStudy (anonymous):
why?
OpenStudy (anonymous):
how do you multiply the whole thing by 4?
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OpenStudy (anonymous):
so i don't have to deal with fractions
OpenStudy (anonymous):
you multiply each term by 4 as long as you do it to every single term on both sides, the equation will remain equal
OpenStudy (anonymous):
wait but what are you multiplying by 4? did you subsatute the fractions by 4??
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