Question

-12 + _ = -20 How do you show the work for this?

Answer 1

-12 + _ = -20

-12 + (-18) = -20✔

so the answers is = -18

Answer 2

You can turn this into an algebraic equation by changing the equation to -12 + x = -20. Our goal is to solve for x. This can be done by adding 12 to both sides. This gives us x = -8.

-12 + (-8) does equal -20.