Question

7+x upon 5 - 2x - y upon 4 = 3y - 5​

Answer 1

$\bf Answer :-$

$\sf \dfrac{7x + x}{5} - \dfrac{2x - y}{4} = 3y - 5 \\ \\ \tt \dfrac{28x +5x - 10x - 5y }{20} = 2y -5 \\ \\ \rm \dfrac{23x-5y}{2y-5}$

Thus , done

Answer 2

$\huge\rm { ☆_!! Question !_! ☆}$

$\rm\red { \dfrac{7 + x}{5} - \dfrac{2x - y}{4} = 3y - 5 }$

$\huge\rm { ☆_!! Solution !_! ☆}$

$\rm { : \implies \dfrac{4(7 + x) - 5(2x - y)}{20} = 3y - 5 }$

[ LCM of 5 and 4 = 20 ]

$\rm { : \implies \dfrac{28 + 4x - 10y + 5x}{20} = 3y - 5 }$

$\rm { : \implies 28 + 4x - 10y + 5x = 20 ( 3y - 5 )}$

[ By cross multiplication method ]

$\rm { : \implies 28 - 6x + 5y = 60y - 100 }$

$\rm { : \implies 28 + 100 = 60y + 6x - 5y }$

[ Sign changed when we transposed -100 from RHS to LHS and -6x and +5y from LHS to RHS ]

$\rm\green { : \implies 128 = 55y +6x \: Ans. }$

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