how it is happened plz explain
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2
Answer:
9x + 9y = 63
9(x+y)= 63
x+y=63/9
x+y=7
Answered by
12
Answer:
Well if you are talking about 2 then it means 2 point.
if you are talking about x-y=7 then this statement comes by dividing each digit by 9
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