Question

How do you solve `2x+3=9`?

Answer 1

`x = 3`

Explanation:

`2x + 3 = 9`

We want to find the variable `x`, so we have to make it alone. To do so, first subtract `color(blue)3` from both sides of the equation:
`2x + 3 quadcolor(blue)(-quad3) = 9 quadcolor(blue)(-quad3)`

`2x = 6`

Now divide both sides by `color(blue)2`:
`(2x)/color(blue)2 = 6/color(blue)2`

So the final answer is:
`x = 3`

Hope this helps!