Final answer:
The simplified form of the expression is 2x + 9.
Step-by-step explanation:
To simplify the given expression, we first need to find a common denominator for the two fractions. In this case, the common denominator is 5.
To find the numerator, we multiply the numerator and denominator of each fraction by 5 to get:
((x+4)*5 + (x+5)*5) / 5
Expanding the expressions in the numerator gives:
(5x + 20 + 5x + 25) / 5
Combining like terms, we have:
(10x + 45) / 5
Dividing each term by 5, we get the simplified form:
2x + 9