Uhhhhhhh I don't really know look on quizlet
13 its not hard aslo give n if not no one can figure it out
Answer:
depends mostly it'll b 180 degress
Step-by-step explanation:
There are 2 methods you are taught in Middle School.
Elimination and Substitution.
Given the equation :

So, to find d , divide both sides by ( -6 )
So,

Note: when we divide two negative numbers, the result will be a positive number