Respuesta :

ossashi
Okay, let's work this out.

3x+70−7x=3x+70+−7x

Combine Like Terms:=3x+70+−7x=(3x+−7x)+(70)
=−4x+70

Answer -4x+70

I really don't understand what you mean by this, perhaps you wrote the question wrong, but it would be great than 18.