If 9x - 9y = 18 then x - y = ?
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Answered by
1
Answer:
2 is the answer
Step-by-step explanation:
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Answered by
0
Step-by-step explanation:
9(1) - 9(-1)=18
9-(-9)=18
9+9=18
x=1,y=-1
x-y= 1-(-1)
1+1=2
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