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Formula
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Answer
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$-x+4y- \left( -5x-7y \right)$
$4 x + 11 y$
Organize polynomials
$- x + 4 y \color{#FF6800}{ - } \left ( \color{#FF6800}{ - } \color{#FF6800}{ 5 } \color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 7 } \color{#FF6800}{ y } \right )$
$ $ Change the symbol of each term in parentheses when there is a (-) symbol in front of parentheses $ $
$- x + 4 y + \color{#FF6800}{ 5 } \color{#FF6800}{ x } + \color{#FF6800}{ 7 } \color{#FF6800}{ y }$
$\color{#FF6800}{ - } \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \color{#FF6800}{ y } \color{#FF6800}{ + } \color{#FF6800}{ 5 } \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 7 } \color{#FF6800}{ y }$
$ $ Organize the similar terms $ $
$\left ( \color{#FF6800}{ - } \color{#FF6800}{ 1 } \color{#FF6800}{ + } \color{#FF6800}{ 5 } \right ) \color{#FF6800}{ x } \color{#FF6800}{ + } \left ( \color{#FF6800}{ 4 } \color{#FF6800}{ + } \color{#FF6800}{ 7 } \right ) \color{#FF6800}{ y }$
$\left ( \color{#FF6800}{ - } \color{#FF6800}{ 1 } \color{#FF6800}{ + } \color{#FF6800}{ 5 } \right ) \color{#FF6800}{ x } + \left ( 4 + 7 \right ) y$
$ $ Arrange the constant term $ $
$\color{#FF6800}{ 4 } \color{#FF6800}{ x } + \left ( 4 + 7 \right ) y$
$4 x + \left ( \color{#FF6800}{ 4 } \color{#FF6800}{ + } \color{#FF6800}{ 7 } \right ) \color{#FF6800}{ y }$
$ $ Arrange the constant term $ $
$4 x + \color{#FF6800}{ 11 } \color{#FF6800}{ y }$
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