Question

Give the value of 'a' in terms of 'b' and 'c' from the following expression:

2a-8b = 12c

Answer 1

@thomaster

Answer 2

@Luigi0210

Answer 3

@jim_thompson5910

Answer 4

what it wants you to do is solve for 'a'

Answer 5

have you gotten started at all?

Answer 6

@jim_thompson5910 sorry no im not sure how to

Answer 7

we have 2a-8b = 12c

Answer 8

we want 'a' on its own side all by itself

let's have 'a' on the left side

Answer 9

that must mean we have to move over that 8b term

Answer 10

how do we do this?

Answer 11

so itll become 12c-8b all divided by 2 which would then equal 6c-4b=a

Answer 12

do we then plug that in for a? @jim_thompson5910

Answer 13

why are you subtracting 8b from both sides?

Answer 14

oh its adding 8b sorry

Answer 15

better

Answer 16

and yes, after you add 8b to both sides, you divide both sides by 2

Answer 17

making it all 6c+4b=a

Answer 18

correct, so a = 4b+6c

Answer 19

okay, great. Is that all?

Answer 20

yes it is

Answer 21

thank you!

Answer 22

you're welcome