Question

Solve for the variable indicated
-4x-8y=36 solve for x

Answer 1

x = -2y - 9

Explanation:

First isolate the variable by putting the x on a side by itself.

-4x=36+8y (8y becomes positive when it changes sides)

Then divide the entire equation by -4 to make the x stand alone.

x = -9 -2y

Some teachers prefer the variables at the beginning of the equations so it could also read

x = -2y - 9

Answer 2

Hello there!

Question:-

`-4x-8y=36`

We need to find the value of x.

Solution:-

`\sf \longmapsto-4x-8y=36`

Firstly, Add 8y to both sides :-

`\sf \longmapsto \: - 4x - 8y+8y=36+8y`

On Simplification:-

As (-) and (+) equals to (-),It Will be 8y-8y.Answer would be 0.

`\sf \longmapsto \: - 4x - 0 = 36 + 8y`

`\sf \longmapsto \: - 4x = 8y + 36`

Then, Divide both sides by -4:-

`\sf \longmapsto \: (4x)/( - 4) = (8y + 36)/( - 4)`

On Simplification:-

`\sf \longmapsto \: x = - 2y - 9`

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Henceforth the value of x is :-

`\boxed{\tt \: x = - 2y - 9}`

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I hope this helps!

Please let me know if you have any questions.

~MisterBrian