find the value of x and y in 7x-y=5 ; 21x-3y=10 using substitution method
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44
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multiply equation first by 21 and equation 2 by 7 then cancel same cofficient and put the value in equation first .
I hope helpful for you.
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2
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Refer to the above attachment ✌️
I don't if itz correct Niveethaa .
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