Add $3 x + 11$ and $7 x - 5$ .

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Solution

Addition of $3 x + 11$ and $7 x - 5$ can be done as follows.
On grouping the like terms, we have :
$\begin{array}{rcl} = & (3 x + 11) + (7 x - 5) \\ = & (3 x + 7 x) + (11 - 5) \\ = & 10 x + 6 \end{array}$
Hence, on adding $3 x + 11$ and $7 x - 5$ we get $10 x + 6$ .

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