Question

What is the answer to 720x+(-20x)

Answer 1

720x + (-20x)

Remember

(+)(+) = (+)

(+)(-) = (-)

So + (-20x) will equal - 20x, so

720x + (-20x) = 720x - 20x

Subtract 20 from 720

720 - 20 = 700, so

720x + (-20x) = 720x - 20x = 700x