To solve this problem, we have to set up an equation. Let the variable x represent the number of books that Dimitrius had before last week.
x - 5 - 3 + 8 = 12
To begin simplifying this equation, lets combine terms on the left side of the equation.
x - 8 + 8 = 12
The -8 and +8 cancel each other out, leaving us with:
x=12
Therefore, Dimitrius had 12 books before last week.
Hope this helps! :)
Answer:
divide
Step-by-step explanation:
Answer:
x=9
Step-by-step explanation:
FE is 3x-7
since ΔABC≅ΔDEF the equivalent of FE is CB, or BC...which is 20
3x-7=20
3x=27
x=9
Step-by-step explanation:
Its a parallelogram
Hope it helps
