Question

3x-4y=12 for Y ....

Answer 1

what are you asking to do?
express the equation in y = ... ?

Answer 2

The instructions are: Solve each formula for the specified variable.
3x-4y=12 solve for y

Answer 3

ok..
you have equation 3x - 4y = 12
and you'are asking to state this equation in y = .....
you need to 'put' the y-variable in one side and other terms in another side...

3x - 4y = 12

I'll put the y-variable in the left side and other terms in the right side..,
what should I do so that there is only '-4y' in the left side ?

Answer 4

4y=3x+12

Answer 5

hou do you get it? :)

Answer 6

I have no idea.. i am so confused

Answer 7

Do I divide both sides now by 3... thus giving y=4

Answer 8

you have equation
3x - 4y = 12

I want to put '-4y' in the left side, while I have '3x-4y' in the left side
so I need to 'add (-3x) on both side'

3x - 4y -3x = 12 - 3x

3x - 3x - 4y = 12 - 3x
-4y = 12 - 3x

can you continue it? :)

Answer 9

Im trying... for all intent and purpose, I ignore the variable 'x' right... so would it be
-4y=12/3

Answer 10

-4y = 4

Answer 11

you cannot ignore the variable 'x'

Answer 12

so then what do I do next...

Answer 13

-4y = 12 - 3x
divide both sides by (-4)