Plz answer will give brainliest

X+ y = 5 ; x - y =3 solve using linear combination

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:

Solve the equation. show your math work step by step. 5x −14=−34