How is solving inequalities with multiplication and division similar to and different from solving equations with multiplication and division

What is the y-coordinate of the solution of the system of equations? [tex]y = 2x + 14 \\ - 4x - y = 4[/tex]y=

Choose the more precise measurement. 26.4 cm or 8.39 cm

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0