Subtract $2 x - 5 y$ from the sum of the binomials $x + 7 y$ and $3 x - 6 y$ .

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Solution

$(x + 7 y) + (3 x - 6 y)$
$= 4 x + y$
$(4 x + y) - (2 x - 5 y)$
$= 4 x + y - 2 x + 5 y$
$= 2 x + 6 y$

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