What are the solutions of the following systems negative x plus 3y equals four and x minus 3y equals three

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

What is not true about kl and mn? what is mn? (show )