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Rachna SagafromPUBLISHED BY 30 oruCorporate Off4583/15, DaryPO Box 7226one 011-4Fax 011 -2AhmedabadBengaluruHSAGAR PVT. LTD. BoaiunmUCATIONAL PUBLISHERSChandigarhChennaiCochinDehradunwww.rachnasagar.in |
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Answer» =2(2x)=2x+2x=4x 2x added by 2x comes 4x |
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