Division Property of Equality.
Always use opposite operation with side that contains variable.
Isolate variable.
Divide 4 by 4 to get it by itself.
Now do the same to other side.
I don’t know i don’t speak spanish
2 notebooks* ($20/ 5 notebooks)= $8.
(Note that the unit cancels out so you get the answer)
Final answer: $8~
Answer:
The solutions of the equation x^2-1=-x^2+7 are (-2,3) and (2,3)
Step-by-step explanation:
Please, see the attached file.
Thanks.