Question

How do you solve `-0.5-1.8=-3.3`?

Answer 1

By declaring that the given equation is not valid; since `(-0.5-1.8=-2.3)`

Explanation:

Perhaps this was intended to be:
`color(white)("XXX")-0.5x-1.8=-3.3`
In which case:
`color(white)("XXX")-0.5x=-1.5`
`rarrcolor(white)("XXX")x=3`