Dat be called common difference represented by d in the equation
Rational numbers are whole integers w no fractions. bc the square root of 72 is not a whole number, it is irrational
m I think I'm not really sure sorry if I'm wrong.
For the equation to work, you have to have the same number on both sides of the equal sign
so to find ?, you can do:
13 - 2 = 12 - ? Simplify
11 = 12 - ? Subtract 12 on both sides
-1 = - ? Multiply -1 on both sides
1 = ?
