Question

How do i do 1/2a-3=7-3/4a

Answer 1

2a - 12 = 28 -3a
5a = 40
a = 8

Answer 2

where are you getting 2a-12 from?

Answer 3

i multiplied the entire equation by 4

Answer 4

why?

Answer 5

how do you multiply the whole thing by 4?

Answer 6

so i don't have to deal with fractions

Answer 7

you multiply each term by 4
as long as you do it to every single term on both sides, the equation will remain equal

Answer 8

wait but what are you multiplying by 4?
did you subsatute the fractions by 4??