What was the initial value of Luna savings?

Answer:
The answer would be 350 euros
Your welcome e d g e n u i t y peeps! :)
Using the property of the subtraction, the problem is solved. Then the initial value of Luna's savings is 350 Euros.
It simply means to deduct something from the object or number of group, place, etc. Subtraction means to take away from the group or a number of objects.
Given
Luna brought all her saving with her to Roma.
For the first week, she spent the same amount of money each day.
A table is shown.
[tex]\begin{aligned} & \rm Day \ \ \ \ \ \ \ \ \ & \rm Euros\\ &0 & \rm x\\ &1 &315\\ &2 &280\\&3 &245\\ &4 &210\\&5 &175\\&6 &140\\ &7 &105\\\end{aligned}[/tex]
So each day she spent will be
140 - 105 = 35
she spent 35 euros each day.
The initial value of the Luna's will be
315 + 35 = 350
Thus, the initial value of Luna's savings is 350 Euros.
More about the subtraction link is given below.
https://brainly.com/question/4319655