the one on the left is 3 times larger than the one on the right. in other words, the right triangle's dimensions times 1/3 is equal to the left triangle's dimensions.
x - y = 35 x = 6y Plug 6y in for x in the first equation. 6y - y = 35 5y = 35 Divide both sides by 5 y = 7 x = 6y x = 6(7) = 42 42 and 7 Letter C Since we had the answers we could have just tried the answers but you will not always have multiple choice so this is the method for solving.
