Question

Rearrage to make y the subject.

I need working as well please ! My online class never went into so much detail !

k = -3y + 4.3 - 6y

Answer 1

First you have to isolate the -6y term by adding 3y to both sides ad then subtracting 4.3 from both sides. This leaves us with k + 3y - 4.3 = -6y. Now divide everything by -6 to get k + 3y - 4.3/ -6 = y. Since the 6 is negative, and I believe I am correct in saying this, the signs of the terms in the numerator will change. The answer, then, would be -k - 3y + 4.3/6 = y.

Answer 2

so

k = -3y + 4.3 - 6y
k + 3y = -3y + 4.3 - 6y + 3y
k + 3y - 4.3 = 4.3 - 6y - 4.3
k + 3y - 4.3/-6 = -6y/-6
-k - 3y + 4.3/-6 = y

?

Answer 3

sorry last line is positive 6

Answer 4

still need help?

Answer 5

it is easier if you first collect like terms on the right side

Answer 6

Sorry i wasnt here !
yeah, based on what the other person told me i ended up with
k = -3y + 4.3 - 6y
k + 3y = -3y + 4.3 - 6y + 3y
k + 3y - 4.3 = 4.3 - 6y - 4.3
k + 3y - 4.3/-6 = -6y/-6
-k - 3y + 4.3/6 = y

i that right? do brackets need to go anywhere ?

Answer 7

i would prefer to start over, is that ok ?

Answer 8

yeah of course

Answer 9

thank you for helping me :)

Answer 10

on the right side we can collect like terms

Answer 11

k = -3y + 4.3 - 6y
k = -9y + 4.3

ok so far ?

Answer 12

yep

Answer 13

now subtract 4.3 from both sides

Answer 14

k = -3y + 4.3 - 6y
k = -9y + 4.3
k - 4.3 = -9y

Answer 15

make sense so far?

Answer 16

yeah im following well :)

Answer 17

now divide both sides by -9 ,

Answer 18

to isolate the y

Answer 19

k = -3y + 4.3 - 6y
k = -9y + 4.3
k - 4.3 = -9y
(k - 4.3) / -9 = y

Answer 20

so much easier thank you so much

Answer 21

I have another if you wouldn't mind ?

Answer 22

ok

Answer 23

t = -8(y-1)^2

Answer 24

can i have a go first and you tell me where i mess up if thats okay ?

Answer 25

actually i dont like that idea >.< im lost already

Answer 26

so what was the original question

Answer 27

t = -8(y-1)^2