### This is a multi-question problem that involves a) graphing a straight line given two points, b) graphing two straight lines to find the solution, c) finding the x- and y-intercepts given the equation, d) writing the equation of a linear given the slope and a point, e) solving problems that have two variables, f) finding the equation of a line given two points.

1. Find the values of x and y that solve the following system of equation -5x - 7y = 12 9x - 5y = -4 2. The sum of two numbers is 48. One number is 3 times as large as the other. What are the numbers? 3. Find an equation of the line that is parallel to the line y = 2x - 5 and that passes through the point (8,2)