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And for 4x – 2y – 4 = 0 or y = (4x4)/2 So, the equations are represented in graphs as follows From the graph, it can be seen that these lines are intersecting each other at only one point,(2,2)1 Solve by elimination 9x 7y= 30 and 4x 7y= 74 2 Solve then graph on a line need solution set x6>1 3 graph on a line and write t read more連立方程式 加減法(2) 1 次の連立方程式を解きX 7y = 18 4x 7y = 30 How can you order a ladder?X2y=8;4x7y=30 This deals with linear equations with two unknowns Overview; Royalsocietypublishing Org X-y=2 4x 7y=30