Question #11ec0

1 Answer
Dec 18, 2017

#6x+21#

Explanation:

Using distributive property:
If you don't know what is distributive property,
#a(x+-y)=ax+-ay#
Also remember that if a #a=2 " and " x=4" then " ax != 24# as in of #ax#, it is #a xx x=2xx4=8#
#(3xx2x)+(3xx7)#
Multiply
#6x+21#