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how to change sign in elimination methord sometimes it become (-) (+)=+ how??? |
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Answer» yes swati tum ya kahna cahati ho ki agar upper (-) ha aur neecha (-) toh change nhii hoga sirf + and - change hoga but agar unka sign same h to sign nahi change hota Niche jo sab number honge unko dekhna......... Jo positive jonge.... Wahan - hoge..... Aur negative hoge to + |
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