Simplify each expression by collecting and combining like terms
$4 a + 5 a - 3 a - 2 a$

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Solution

Simplifying the expression.
Given, $4 a + 5 a - 3 a - 2 a$
As in expression is in like terms, adding them with using of distributive law.
$= 4 a + 5 a - 3 a - 2 a = (4 + 5 - 3 - 2) a = 4 a$
Hence, the simplification of $4 a + 5 a - 3 a - 2 a$ is $4 a$ .

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