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In ex 4.4 4main 1one answer …

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In ex 4.4 4main 1one answer is 7n+50+40=300 how is it come

    • Posted by Santosh Hadapad 6 years, 3 months ago

    CBSE > Class 07 > Mathematics
    • 1 answers

    Kunal Murari 6 years, 3 months ago

    7n+90= 300 7n = 300-90 n = 210÷7 n. =30 So atq 7*30+50+40=300 210+50+40 =300 300. =300 L. H. S = RHS Hence verified

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