The number 2 means that there are 2 chlorine atoms attached to one magnesium atom in a molecule of magnesium chloride
maybe it is question 1 and question 2
Its mean the number 8563 !
Let the number be x and if you mean 2x+3 = x+5 then the value of x is 2
It means that you treat it as a negetive number instead of as "minus one".For example:3-1=2But:3(-2)=-6.
Take the sum of the numbers divided by the number of numbers. Mean = (7+8+8+2+10+8+7)/7 = 7.14