How do you simplify (4a-b)+(3a-5b)?

How do you simplify $\left(4a-b\right)+\left(3a-5b\right)$?
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Explanation:
$\left(4a-b\right)+\left(3a-5b\right)$
$4a-b+3a-5b$
Grouping like terms together:
$3a+3a-b-5b$
$=7a-6b$