Question

How do you solve `100=1.5x+55`?

Answer 1

`color(coral)"x = 30"`

Explanation:

`color(blue)("Subtract 55 on both sides:")`

`100=1.5x+55`
`-cancel55` `color(white)(aaaaa) -55`

55 cancels out on the right side, and when you subtract 55 from 100 on the left you get 45:

`45 = 1.5x`

`color(purple)("Divide both sides 1.5 to get x by itself.")`

`45/1.5=(cancel"1.5"x)/cancel1.5`

Now you are just left with `x` on the right side and 30 on the left side.

Thus,
`color(red)"x = 30"`