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5 steps: (1) A SYSTEM of equations is two (or more) equations with the same variables. (2) The SOLUTION is the point (x,y) that satisfies BOTH equations simultaneously. (3) Graphically: it's where the lines CROSS (intersect). (4) Example: y=2x+1 and y=-x+7. Graph both. They cross at (2,5). Check: 5=

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