Question 1029386
Complete the table 
3x+6y=18 X( ,0)y(0, )
x+2y = 6
@y=0, x = 6 --> (6,0)
@x=0, y = 3 --> (0,3)
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Do the others the same way.  You can reduce first, or not.
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3x+6y=6  X( ,0)y(0, )
3x+6y=3  X( ,0)y(0, )
3x+6y=7  X( ,0)y(0, )