Question

Medal
If y = 5x +8 , write x= f (y)

Answer 1

y = 5x +8
Subtract -5x from both sides

-5x + y = 8
Subtract y from both sides

-5x = -y +8
Divide both sides by -5

That should give you your answer. :)

Answer 2

how would you solve this

Answer 3

help me please

Answer 4

i got -1.6 as my answer am i right

Answer 5

Tell me how you got 1.6

Answer 6

-1.6*

Answer 7

8/-5 = 1.6

Answer 8

Do you only need the y value?

Answer 9

i need the x value

Answer 10

So you are isolating x, correct?

Answer 11

yes

Answer 12

You just divide the rest of the equation by -5, and x is then isolated.
x = -1/5y - 8/5

Answer 13

Unless your teacher wants you to, you don't have to solve the fractions either.

Answer 14

-1/5y = -0.2 -1.6

Answer 15

Where did you get the -0.2 and -1.6?

Answer 16

I know how you got -1.6

Answer 17

-1 divded by 5 = -0.2

Answer 18

You have to keep your variables in the equation, so you would have...
x = -0.2y - 1.6

Answer 19

Unless you are given another equation or a set of coordinates, you can't do much more to the equation given, so x = -1/5y - 8/5 or x = -0.2y - 1.6 would be your final answer.

Answer 20

thank you so much

Answer 21

You're very welcome. :)