Identity, <span>For example, x + x = 2x is </span>true for every value<span> of x.</span>
Answer:
i wish i knew
Step-by-step explanation:
i wanted to type
Answer:
-11/12 − 1/6
-3/5 + 3/20
-2/3 + 1/12
Step-by-step explanation:
Answer:

Step-by-step explanation:
We must develop three equations in three unknowns.
I will use these three:


