7 years ago i was 7 times as old as you were then.if my present age i s x years and yours is y years then represent the given data in a form of linear equation in two variables.also represent it graphically
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7 (x-7)=y-7
7x-49=y-7
7x-y=-7+49=42
7x-49=y-7
7x-y=-7+49=42
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