draw graph of
x+3y=6
2x-3y=12
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EQ 1= x+3y=6
1.= x= 0
0+ 3y=6
y= 6/3
y= 2
2.= x= 1
1+3y=6
3y= 5
y= 5/3
y= 1.5
3.= y= 0
x+3(0)=6
x=6
2.1= x=0
2(0)-3y=12
y=12/-3
y=-4
2.2 = y= 0
2x-3(0)=12
2x= 12
x= 12/2
x= 6
2.3 = y= -1
2x-3(-1)=12
2x+3=12
2x=9
x=9/2
x=4.5
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