Math, asked by maari1512, 1 year ago

answer 11,13,14&15th questions

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Answered by RendemoShitiri

question no 11
y-3/5+y-4/7=6-[2y-1/35]
7(y-3)+5(y-4)/35=6-2y+1/35
7y-21+5y-20/35=35×6-2y+1/35
=12y-41/35=210-2y+1/35
=12y-41-211+2y=0
=14y-252=0
=y=252/14
y=18

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