Question

Question #f4748

Answer 1

See a solution process below:

Explanation:

First, subtract `color(red)(1)` from each side of the equation to isolate the `x` term while keeping the equation balanced:

`-9x + 1 - color(red)(1) = -80 - color(red)(1)`

`-9x + 0 = -81`

`-9x = -81`

Now, divide each side of the equation by `color(red)(-9)` to solve for `x` while keeping the equation balanced:

`(-9x)/color(red)(-9) = (-81)/color(red)(-9)`

`(color(red)(cancel(color(black)(-9)))x)/cancel(color(red)(-9)) = 9`

`x = 9`

Answer 2

`x=9`

Explanation:

Begin by subtracting `1` from both sides:

`-9xcancel(+1color(red)(-1))=-80color(red)(-1)`

`-9x=-81`

Divide both sides by `-9`

`cancel(-9)/cancelcolor(red)(-9)x=(-81)/color(red)(-9)`

`x=9`