The sum of two numbers is 18. Two less than four times the smaller number is equal to the larger number x. Find the larger number. (Enter an exact number.)

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work: