Solve the graphically the system of linear equation x+y=6 , x-2y=-1
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x-y=6. . .. .....1
x-2y=1. . .....2
y=5
y=5 put in equation 1
5+y=6
y= 1
x-2y=1. . .....2
y=5
y=5 put in equation 1
5+y=6
y= 1
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