Consider the equations
5x + 2y = 13
23x + 7y = 25
(a) Put each equation into the standard format for a straight line (y = mx + b) and plot both lines. Use your graph to find the point (x, y) where these lines intersect. (b) Use algebra to find the values of x and y that simultaneously satisfy these two equations. (c) How do your answers to parts (a) and (b) compare?
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