Write two expressions that the solution is 19

Don't know how to find x given these segment lengths

Which graph represents the given linear function 4x+2y=3

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.