(100.x-10).(6+x)=0 (6.x+12).(15-5.x)=0 x.(x+7)-15.(x+7)=0

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By Reagan

(100.x-10).(6+x)=0
(6.x+12).(15-5.x)=0
x.(x+7)-15.(x+7)=0




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