Question

3x+6y=18 solve for x

Answer 1

3x+6y=18

then

3x+6y+−6y=18+−6y

next

3x=−6y+18

then

3x /3 =( −6y+18) /3

answer

x=−2y+6

Answer 2

First subtract 6y from both sides of the equation.

`3x+6y-6y=18-6y\Longrightarrow 3x=18-6y`

Then divide both sides of the equation with 3.

`3x=18-6y\Longrightarrow x=(18-6y)/(3)`

Which further simplifies to.

`x=(18)/(3)-(6y)/(3)\Longrightarrow\boxed{6-2y}`

Hope this helps. I tried to made the steps very clear and easy.

r3t40