Add the terms: $3 x$ , $- 5 x$ , $7 x$ .

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Solution

Given terms are: $3 x$ , $- 5 x$ , $7 x$
The given terms are like terms. So, we can add.
Adding the terms: $3 x + (- 5 x) + 7 x$
$= 3 x - 5 x + 7 x$
$= 3 x + 7 x - 5 x$ ( write the same sign terms together and simplify)
$= 10 x - 5 x$
$= 5 x$
Therefore, sum of the given terms is $5 x$

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