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How do you combine $(7 a + 4 b) - (2 a + 3 b)$ $(7a + 4b) - (2a + 3b)$ ?

1 Answer

Jul 20, 2015

$= 5 a + b$ $=5a+b$

Explanation:

$7 a + 4 b - 2 a - 3 b$ $7a+4b−2a-3b$

Grouping like terms:
$= (7 a - 2 a) + (4 b - 3 b)$ $=color(blue)((7a -2a)) +(4b-3b)$

$= 5 a + b$ $=5a+b$

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