write the solutions for the equation 2x-y=7
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Step-by-step explanation:
If x=1
2-y=7
y=-5
Therefore, (x,y) = (1,-5)
If y=1
2x-1=7
2x=6
x=3
Therefore, (x,y) = (3,1)
If x=0
0-y=7
y=-7
Therefore, (x,y) =(0,7)
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