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Solve graphically x = 4 and 3x - 2y = 10. Write down the co-ordinates of the point of intersection of the two lines.
12 - 2y = 10 2y = 2 y=1 ( 4 , 1 )
3x-2y=10, 3(4)-2y=10 12-2y=10 12-10=2y 2=2y y=1 therefore the co ordinates are (4,1).