When you solve systems with two variables and therefore two equations, the ... of any variable is 1, which means you can easily solve for it in terms of the other ... In the substitution method, you use one equation to solve for one variable and ... Look for a variable with a coefficient of 1 … that's how you'll know where to begin.
if we put n as the number of sides in a regular polygon, the formula to find the measure of each angle is so the answer will be they each measures 144 degrees
