Question

5x+20y=4
x=-4y+1

Solve for x/y

Answer 1

Hi there!

Looks like a lot of work is going on here.

Let's start by solving this equation for the x.

`5x + 20y = 4`

Step 1) Add -20y to both sides.

`5x + 20y + - 20y = 4 - 20y 5x = -20y + 4`

Step 2) Divide both sides by 5.

`(5x)/(5) = (-20y + 4)/(5)`

`x = -4y + (4)/(5)`

Final Answer:

`x = -4y + (4)/(5)`

Now, let's solve for y.

Step 1) Add -5x to both sides.

`5x + 20y + - 5x = 4 + - 5x 20y = -5x + 4`

Step 2) Divide both sides by 20.

`(20y)/(20) = (-5x + 4)/(20)`

`y = (-1)/(4) x + (1)/(5)`

Final Answer:

`y = (-1)/(4) x + (1)/(5)`

Hope this helps! :D

Hint - When you have two variables in an equation, and you want to solve for one, the other will end up in your answer. :)