The sum of eight and a number is one hundred. What is the number?
To work out the answer to this question, you simply have to work it out in reverse. So, one hundred take nine is ninety-two. Therefore the sum of eight and that same number, ninety-two, must be the answer to this question. Hopefully that answers your query!
sum of 2 numbers is the answer / number you get after addiing the 2 numbers
we are told that sum of 8 and another number is 100
so lets call the other number x
so if we put this in an equation
8 + x = 100
we have to make x the subject of the formula as we need to find x
so we have to make x the only term on one side of the equation
for this we carry out the reverse operator for addition of 8 on both sides of the equation
reverse operator for addition is subtraction
x + 8 - 8 = 100 - 8
x = 92
the number is 92