Create a system of equations. Let x be the least number and y be the greatest number.
C
Practice makes perfect
We are given that the sum of three numbers is 180 and two of them are the same. Let's call each of them x. Additionally, we know that each of x is 13 of the greatest number, which we can call y. Using this information we can write a system of equations.
2 x+ y=180 & (I) x=13 y & (II)
Let's solve this system using the Substitution Method. To do this, we will substitute 13y for x into the first equation.
