Question

How do you solve `3- 2x = 8+ 2x`?

Answer 1

`x = -5/4` or about `-1.25`

Explanation:

`3-2x = 8 + 2x`

To solve for the variable `x`, we have to make it by itself. First, subtract `color(blue)(2x)` from both sides of the equation:
`3-2x quadcolor(blue)(-quad2x) = 8 + 2x quadcolor(blue)(-quad2x)`

`3 - 4x = 8`

Now subtract `color(blue)3` from both sides:
`3 - 4x quadcolor(blue)(-quad3) = 8 quadcolor(blue)(-quad3)`

`-4x = 5`

Divide both sides by `color(blue)(-4x)`:
`(-4x)/color(blue)(-4) = 5/color(blue)(-4)`

`x = -5/4` or about `-1.25`

Hope this helps!